Revert "Update SDL_GameControllerDB to point to backup repository"

Fix Content.mgcb not being visible in VS 2019

Fix Mac tool tests

Improve native library loading

Fix initialization crash on iOS GLES 2.0 devices

Fix TFM in templates

Check for Linux instead of Mac, and fix a bit of formatting (fixes #6816)

[iOS] Fix gl error and race condition (fixes #6928, fixes #6552)

Enable executable generation for macOS by default

ContentManager uses these for its ScratchBufferPool.

Pool ContentManager scratch buffers

Use int for parameter count in effect binary

Changelog: Remove internals and improve other entries

* Updated images to new docs standard.

Additional tasks:

* Update code docs to 3.8 standards
* removed any lingering "pipeline" references
* Removed redundant pipeline images

Tiny improvements to MGCB Editor and VS for Mac addin

)

* Updated SDK versions in universal project and universal templates

* Updated SDK on template of CoreApp project.

* Increased TargetPlatformMinVersion from 14393 to 16299.

3.8 Changelog Update

- Move 3.7 and XNA migration to Getting Started content
- Updated toc for Getting Started pages to include the migration guides
- Removed old links from header toc

The targets file does not not the list of platforms that mgcb might support so don't try to check that

[MGCB Task] Fix checking the MonoGamePlatform property

…g MonoGame statements

Update documentation structure

Fix broken links

Documentation Upgrade

…7289)