They were replaced in 3.1 by PhysicsMaterial properties via #12403.

doc: Sync classref with current source

Removed Color::gray

Lots of internal API changes and some docstrings were lost in the conversion.
I manually salvaged many of them but for all the rendering-related ones, an
additional pass is needed.

Added missing enum bindings in BaseMaterial3D and VisualServer.

It was marked to be removed in Godot 3.1.
Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>

Changed in-text driver name to "Vulkan"

Fixes friend declaration tag mismatch

But it still requires a change of "driver_name" in backend itself.

Fix problems with concave shapes in the TileSet editor

Fixes crash when resource file is corrupted

Fix assign instead of comparison in image_save_tinyexr.cpp.

Update VulkanMemoryAllocator to 2.3.0 (Fixes build for 32-bit Windows and Linux).

Implementation of 'struct' for shaders

Don't flip screenshot.

[MinGW] Remove unused WinAPI includes/defines from RVO2.

Add initial Vulkan support, master branch goes UNSTABLE

- `vk_enum_string_helper.h` is a generated file taken from the SDK
  (Vulkan-ValidationLayers).
- `vk_mem_alloc.h` is a library from GPUOpen:
  https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator

[Vulkan] Fix shader crash if using multiple underscores in identifiers

Fix Specular Blinn in vulkan

Adapted from e4907e50,
supersedes and closes #34704.

Fixed error condition check for multimesh instance colors

[Vulkan] Restore parts of #33783 and #32809 missing after rebase.