Summary:
This diff moves the iOS descriptors and other layout helpers into its own buck target. Earlier everything was part of the FlipperKitLayoutPlugin target. When kcui, tried to add macos descriptors, we realised that FlipperKitLayoutPlugin doesn't have macos platform in it and thus he had to put #if TARGET_OS_SIMULATOR check in iOS descriptors and at some other places.
In order to make the integration easier I decided to split the Layout Plugin in following way.
```
FlipperKitLayoutPlugin
-> FlipperKitLayoutIOSDescriptors (platform set as IOS)
-> FlipperKitLayoutHelpers (used in iOS Descriptors and usefule for Macos too)
-> FlipperKitLayoutMacOSDescriptors(coming soon by kcui)(platform set as MacOS)
```
Reviewed By: kcui
Differential Revision: D27127587
fbshipit-source-id: f108ef81914297e93c886fe53dabf0a4bf11ebc1
Summary:
This diff runs CLANGFORMAT lint on plugins. I have added CLANGFORMAT as the lint engined for objc files in xplat/sonar. Right now the iOS folder is not formatted according to CLANGFORMAT.
Ran `arc lint -a --paths-cmd "find ./iOS/Plugins -type f" --verbose`
Reviewed By: passy
Differential Revision: D19942173
fbshipit-source-id: 8b975b0a344df073b02d69cd1f9ee5629af2799d
Summary: Add the affiliates bit that the linter is checking for.
Reviewed By: jknoxville
Differential Revision: D15164826
fbshipit-source-id: 500ffe89ec0c2fd3acfbc374408d16a337cecfa4
