Replaces frameworks with static libraries

As of iOS 13.3.1, apps installed with free developer accounts that contain embedded frameworks fail to launch. To work around this, we now link all dependencies via Cocoapods as static libraries.

Podfile

@@ -3,11 +3,13 @@ inhibit_all_warnings!
 target 'AltStore' do
   platform :ios, '12.0'
 
-  use_frameworks!
+  use_modular_headers!
 
   # Pods for AltStore
   pod 'KeychainAccess', '~> 3.2.0'
   pod 'Nuke', '~> 7.0'
+  pod 'AltSign', :path => 'Dependencies/AltSign'
+  pod 'Roxas', :path => 'Dependencies/Roxas'
 
 end
 
@@ -20,4 +22,12 @@ target 'AltServer' do
   pod 'STPrivilegedTask'
   pod 'Sparkle'
 
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    target.build_configurations.each do |config|
+      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.2'
+    end
+  end
 end