Merge branch 'master' into cossacklabs

Sync our branch with upstream updates. The updates add Apple Silicon
support (with hardware acceleration), XCFrameworks, and other updates.

The following commits on our branch are now obsolete:

  - 4e7bf92

Note that due to the changes our Makefile build system is currently
broken. The following commits will fix this. This one only gets the
merge correctly.

Author: ilammy

.gitignore

@@ -3,9 +3,17 @@
 bin
 src
 lib
+frameworks
 include/openssl
 *.gz
 *.framework
+*.o
+*.pbxuser
+*.xcworkspace/xcuserdata
+*.xcworkspace/xcshareddata
+*.xcodeproj/project.xcworkspace
+*.xcodeproj/xcuserdata
+Pods
 
 # Cossack Labs packaging
 output

.travis.yml

@@ -0,0 +1,15 @@
+language: objective-c
+osx_image: xcode12.2
+xcode_workspace: Demo.xcworkspace
+xcode_scheme: Demo
+xcode_destination: platform=iOS Simulator,OS=14.2,name=iPhone 11 Pro Max
+cache:
+    - bundler
+    - cocoapods
+branches:
+    only:
+        - master
+install:
+    - bundle install --jobs=3 --deployment --path=${BUNDLE_PATH:-vendor/bundle}
+    - bundle exec pod repo update
+    - travis_wait 40 bundle exec pod install