Adds VS App Center analytics + crash reporting

Currently tracks install, refresh, and update app events.

Pods/AppCenter/AppCenter-SDK-Apple/iOS/AppCenter.framework/Headers/MSConstants.h

@@ -0,0 +1,170 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+#import <Foundation/Foundation.h>
+
+/**
+ *  Log Levels
+ */
+typedef NS_ENUM(NSUInteger, MSLogLevel) {
+
+  /**
+   *  Logging will be very chatty
+   */
+  MSLogLevelVerbose = 2,
+
+  /**
+   *  Debug information will be logged
+   */
+  MSLogLevelDebug = 3,
+
+  /**
+   *  Information will be logged
+   */
+  MSLogLevelInfo = 4,
+
+  /**
+   *  Errors and warnings will be logged
+   */
+  MSLogLevelWarning = 5,
+
+  /**
+   *  Errors will be logged
+   */
+  MSLogLevelError = 6,
+
+  /**
+   * Only critical errors will be logged
+   */
+  MSLogLevelAssert = 7,
+
+  /**
+   *  Logging is disabled
+   */
+  MSLogLevelNone = 99
+};
+
+typedef NSString * (^MSLogMessageProvider)(void);
+typedef void (^MSLogHandler)(MSLogMessageProvider messageProvider, MSLogLevel logLevel, NSString *tag, const char *file,
+                             const char *function, uint line);
+
+/**
+ * Channel priorities, check the kMSPriorityCount if you add a new value.
+ * The order matters here! Values NEED to range from low priority to high priority.
+ */
+typedef NS_ENUM(NSInteger, MSPriority) { MSPriorityBackground, MSPriorityDefault, MSPriorityHigh };
+static short const kMSPriorityCount = MSPriorityHigh + 1;
+
+/**
+ * The priority by which the modules are initialized.
+ * MSPriorityMax is reserved for only 1 module and this needs to be Crashes.
+ * Crashes needs to be initialized first to catch crashes in our other SDK Modules (which will hopefully never happen) and to avoid losing
+ * any log at crash time.
+ */
+typedef NS_ENUM(NSInteger, MSInitializationPriority) {
+  MSInitializationPriorityDefault = 500,
+  MSInitializationPriorityHigh = 750,
+  MSInitializationPriorityMax = 999
+};
+
+/**
+ * Enum with the different HTTP status codes.
+ */
+typedef NS_ENUM(NSInteger, MSHTTPCodesNo) {
+
+  // Invalid
+  MSHTTPCodesNo0XXInvalidUnknown = 0,
+
+  // Informational
+  MSHTTPCodesNo1XXInformationalUnknown = 1,
+  MSHTTPCodesNo100Continue = 100,
+  MSHTTPCodesNo101SwitchingProtocols = 101,
+  MSHTTPCodesNo102Processing = 102,
+
+  // Success
+  MSHTTPCodesNo2XXSuccessUnknown = 2,
+  MSHTTPCodesNo200OK = 200,
+  MSHTTPCodesNo201Created = 201,
+  MSHTTPCodesNo202Accepted = 202,
+  MSHTTPCodesNo203NonAuthoritativeInformation = 203,
+  MSHTTPCodesNo204NoContent = 204,
+  MSHTTPCodesNo205ResetContent = 205,
+  MSHTTPCodesNo206PartialContent = 206,
+  MSHTTPCodesNo207MultiStatus = 207,
+  MSHTTPCodesNo208AlreadyReported = 208,
+  MSHTTPCodesNo209IMUsed = 209,
+
+  // Redirection
+  MSHTTPCodesNo3XXSuccessUnknown = 3,
+  MSHTTPCodesNo300MultipleChoices = 300,
+  MSHTTPCodesNo301MovedPermanently = 301,
+  MSHTTPCodesNo302Found = 302,
+  MSHTTPCodesNo303SeeOther = 303,
+  MSHTTPCodesNo304NotModified = 304,
+  MSHTTPCodesNo305UseProxy = 305,
+  MSHTTPCodesNo306SwitchProxy = 306,
+  MSHTTPCodesNo307TemporaryRedirect = 307,
+  MSHTTPCodesNo308PermanentRedirect = 308,
+
+  // Client error
+  MSHTTPCodesNo4XXSuccessUnknown = 4,
+  MSHTTPCodesNo400BadRequest = 400,
+  MSHTTPCodesNo401Unauthorised = 401,
+  MSHTTPCodesNo402PaymentRequired = 402,
+  MSHTTPCodesNo403Forbidden = 403,
+  MSHTTPCodesNo404NotFound = 404,
+  MSHTTPCodesNo405MethodNotAllowed = 405,
+  MSHTTPCodesNo406NotAcceptable = 406,
+  MSHTTPCodesNo407ProxyAuthenticationRequired = 407,
+  MSHTTPCodesNo408RequestTimeout = 408,
+  MSHTTPCodesNo409Conflict = 409,
+  MSHTTPCodesNo410Gone = 410,
+  MSHTTPCodesNo411LengthRequired = 411,
+  MSHTTPCodesNo412PreconditionFailed = 412,
+  MSHTTPCodesNo413RequestEntityTooLarge = 413,
+  MSHTTPCodesNo414RequestURITooLong = 414,
+  MSHTTPCodesNo415UnsupportedMediaType = 415,
+  MSHTTPCodesNo416RequestedRangeNotSatisfiable = 416,
+  MSHTTPCodesNo417ExpectationFailed = 417,
+  MSHTTPCodesNo418IamATeapot = 418,
+  MSHTTPCodesNo419AuthenticationTimeout = 419,
+  MSHTTPCodesNo420MethodFailureSpringFramework = 420,
+  MSHTTPCodesNo420EnhanceYourCalmTwitter = 4200,
+  MSHTTPCodesNo422UnprocessableEntity = 422,
+  MSHTTPCodesNo423Locked = 423,
+  MSHTTPCodesNo424FailedDependency = 424,
+  MSHTTPCodesNo424MethodFailureWebDaw = 4240,
+  MSHTTPCodesNo425UnorderedCollection = 425,
+  MSHTTPCodesNo426UpgradeRequired = 426,
+  MSHTTPCodesNo428PreconditionRequired = 428,
+  MSHTTPCodesNo429TooManyRequests = 429,
+  MSHTTPCodesNo431RequestHeaderFieldsTooLarge = 431,
+  MSHTTPCodesNo444NoResponseNginx = 444,
+  MSHTTPCodesNo449RetryWithMicrosoft = 449,
+  MSHTTPCodesNo450BlockedByWindowsParentalControls = 450,
+  MSHTTPCodesNo451RedirectMicrosoft = 451,
+  MSHTTPCodesNo451UnavailableForLegalReasons = 4510,
+  MSHTTPCodesNo494RequestHeaderTooLargeNginx = 494,
+  MSHTTPCodesNo495CertErrorNginx = 495,
+  MSHTTPCodesNo496NoCertNginx = 496,
+  MSHTTPCodesNo497HTTPToHTTPSNginx = 497,
+  MSHTTPCodesNo499ClientClosedRequestNginx = 499,
+
+  // Server error
+  MSHTTPCodesNo5XXSuccessUnknown = 5,
+  MSHTTPCodesNo500InternalServerError = 500,
+  MSHTTPCodesNo501NotImplemented = 501,
+  MSHTTPCodesNo502BadGateway = 502,
+  MSHTTPCodesNo503ServiceUnavailable = 503,
+  MSHTTPCodesNo504GatewayTimeout = 504,
+  MSHTTPCodesNo505HTTPVersionNotSupported = 505,
+  MSHTTPCodesNo506VariantAlsoNegotiates = 506,
+  MSHTTPCodesNo507InsufficientStorage = 507,
+  MSHTTPCodesNo508LoopDetected = 508,
+  MSHTTPCodesNo509BandwidthLimitExceeded = 509,
+  MSHTTPCodesNo510NotExtended = 510,
+  MSHTTPCodesNo511NetworkAuthenticationRequired = 511,
+  MSHTTPCodesNo522ConnectionTimedOut = 522,
+  MSHTTPCodesNo598NetworkReadTimeoutErrorUnknown = 598,
+  MSHTTPCodesNo599NetworkConnectTimeoutErrorUnknown = 599
+};