Improvements for Android platforms

[JR-Morgan]

Discussion started over on this thread .

Currently, The Unity connector builds fine for all platforms (except IL2CPP dependent ones)
However, There are some significant limitations for non-desktop platforms.

• SQLite cache does not work out of the box, and it being the default local transport, causes problems.
• No mechanism to load accounts.

It is, however, possible to manually receive through a hardcoded auth token, and manually specifying an alternative local transport (E.g. memory transport).

See https://github.com/specklesystems/speckle-unity/blob/main/Assets/Extra/ManualReceive.cs

Additionally, there are a number of ways we can improve the DX for Android/IOS builds.

• Add Android/IOS to our release testing cycle.
• Scope web based auth improvements.
• Scope transport improvements.
• Scope full SQLite support.

See discussion

• https://speckle.community/t/unity-android-build/3104
• https://speckle.community/t/receiving-speckle-streams-in-ios-apps/1910
• https://speckle.community/t/receive-speckle-model-in-ar-device/8674
• Support WebGL build #22

[bimgeek]

Closing this ticket as we are moving to Jira to reduce noise. You can access it there.