VideoCore: Fix Floating Point Warning

AppVeyor: Remove os: unstable

The default os has Qt now, so there no need for the unstable os.

Add helpers to create IPC command buffer headers and descriptors

Color support for Y2R

Enforce the "no tab, use spaces" policy with a pre-commit hook.

Services: Continue separation of services into their own folders

Make the call stack entries not editable

Fix svcWaitSynch to correctly acquire wait objects

Log the GL driver’s vendor and renderer

hw: Fix mismatched Write call