Authentication rework, cache session, save and login with adsid and xcodeToken to alleviate GSA connection issue in some regions. Fix a timezone issue when extracting anisette data

AltStoreCore/Components/Keychain.swift

@@ -53,6 +53,12 @@ public class Keychain
     @KeychainItem(key: "appleIDPassword")
     public var appleIDPassword: String?
     
+    @KeychainItem(key: "appleIDAdsid")
+    public var appleIDAdsid: String?
+    
+    @KeychainItem(key: "appleIDXcodeToken")
+    public var appleIDXcodeToken: String?
+    
     @KeychainItem(key: "signingCertificatePrivateKey")
     public var signingCertificatePrivateKey: Data?
     
@@ -83,6 +89,12 @@ public class Keychain
     @KeychainItem(key: "adiPb")
     public var adiPb: String?
     
+    // for some reason authenticated cert/session/team is completely not cached, which result in logging in for every request
+    // we save it here so when user logs out we can clear cached account/session/team
+    public var certificate: ALTCertificate? = nil
+    public var session: ALTAppleAPISession? = nil
+    public var team: ALTTeam? = nil
+    
     private init()
     {
     }
@@ -91,7 +103,13 @@ public class Keychain
     {
         self.appleIDEmailAddress = nil
         self.appleIDPassword = nil
+        self.appleIDAdsid = nil
+        self.appleIDXcodeToken = nil
         self.signingCertificatePrivateKey = nil
         self.signingCertificateSerialNumber = nil
+        
+        self.certificate = nil
+        self.session = nil
+        self.team = nil
     }
 }