* For iOS 15.5, refactor how MGL Expressions are defined. Fix for "NSExpression function is forbidden" #331
* Convert CI Scheme to TestPlan. Add CI-Expressions TestPlan (which skips tests unrelated to `NSExpression`)
* Update Swift & Objective-C sample Code for MGL Expressions. Use these patterns for fixing unit tests.
* Update Swift sample code & documentation for MGL expressions. Update API docs (.h) & online docs (HTML) with: `make darwin-style-code && make idocument`
* Refresh developer documentation for: build dependencies, running unit tests from the command line, and logging in C++.
* Mark certain unit tests as "Expected Failures": Awaiting unit test refactoring for https://github.com/maplibre/maplibre-gl-native/issues/331
* Update to latest Xcode & iOS SDK. Update GitHub Action Runner Images from https://github.com/actions/runner-images
* For iOS 15.5, add "Expected Failure" for tests
* Skip failing test unrelated to NSExpressions
* Convert macOS project to use Test Plans
* Exclude previously failing Offline Storage test
* Refactor MGL Match expressions for macOS & iOS 15.5
* Refactor Unit Tests so that "Excluded Failures" work for both macOS 12 & iOS 15.5
* Refresh documentation on how to test for macOS from the command line
* Move mapview experiment file
The implementation of this file appears to be that it's used in the demo app and is not public, but it's still in the path and compiled into the SDK itself. This seems unecessary.
* add missing
Co-authored-by: Rob Labs <roblabs@users.noreply.github.com>
* Remove duplicate files from platform/ios/platform/darwin and platform/darwin
There are duplicated files between platform/iOS/platform/darwin/src and platform/darwin/src
```
src/headless_backend_cgl.mm
src/image.mm
src/string_nsstring.mm
src/headless_backend_eagl.mm
src/number_format.mm
src/local_glyph_rasterizer.mm
src/logging_nslog.mm
src/nsthread.mm
src/collator.mm
src/CFHandle.hpp
include/mbgl/util/image+MGLAdditions.hpp
src/timer.cpp
src/run_loop.cpp
src/async_task.cpp
src/gl_functions.cpp
```
There are three files which are not the exact same diff even
```
src/local_glyph_rasterizer.mm
src/nsthread.mm
src/collator.mm
```
Uniformly it seems like all platform/iOS/platform/darwin/src files should be removed keeping the platform/darwin/src versions.
I believe these files should have been deleted with a previous change of some kind and are otherwise not referenced.
* update
