- Added <queries> element to AndroidManifest due to new "Package Visi…

…bility change" and added a relevant FAQ entry to README

- Readied the Android native source code for upcoming Android 12 change related to PendingIntents (will recompile the native library once the release comes out of preview)

Embedded proguard.txt file to AAR library which should get rid of Cla…

…ssNotFoundExceptions automatically

Fixed a build error related to namespaces

- Added SetUrl function (closed yasirkula#72)

- Now using proper iOS API to set subject (may fix incorrect subject issue on some problematic email apps but not Gmail, unfortunately)
- Fixed yasirkula#93, hopefully

Bugfix for AddFile(Texture2D) function when the Texture is not marked…

… as readable

Bugfix for yasirkula#56 didn't account for non-Xiaomi devices that ha…

…d MIUI installed, fixed (closed yasirkula#86)

- Fixed a rare issue that would potentially hide some apps from the s…

…hare sheet on Android

- Created a custom share dialog for Android that is used in certain c…

…ircumstances:

  - When SetCallback is called on old Android devices (API<22)
  - When NativeShare.AddTarget is called 2 or more times (it is now possible to specify more than 1 target apps on Android)
  - On Xiaomi devices in landscape orientation (fixes yasirkula#56)
  - When SetCallback is called on Huawei devices (otherwise, callback isn't invoked on some Huawei devices)

- Added share callback (I can already hear the celebrations 🎉) yasirk…

…ula#5

- Added AddFile overload that takes a Texture2D parameter

Added OpenUPM instructions