Fix (unreported): 'CoInitializeEx' being called without 'CoUninitialize'

Problem introduced in {rB1f223b9a}.

This was possibly causing random crashes in Blender file browser when
compiled with ASAN.

Microsoft documents indicate that any call to `CoInitializeEx` must be
balanced by a corresponding call to `CoUninitialize`.

https://docs.microsoft.com/en-us/windows/win32/api/combaseapi/nf-combaseapi-coinitializeex#remarks

Python GPU: Replace a few calls of the bgl module with gpu

Concludes these files:
[x]bpy_types.py
[x]operator_modal_draw.py

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D11129

Merge branch 'blender-v2.93-release'

Fix (unreported): 'CoInitializeEx' being called without 'CoUninitialize'

Problem introduced in {rB1f223b9a}.

This was possibly causing random crashes in Blender file browser when
compiled with ASAN.

Microsoft documents indicate that any call to `CoInitializeEx` must be
balanced by a corresponding call to `CoUninitialize`.

https://docs.microsoft.com/en-us/windows/win32/api/combaseapi/nf-combaseapi-coinitializeex#remarks

Python GPU: Replace a few calls of the bgl module with gpu

Concludes these files:
[x]bpy_types.py
[x]operator_modal_draw.py

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D11129

Python GPU: Add reference of PyObject GPU object to the GPU object itself

Instead of creating different python wrappers for the same GPU object,
return the same `PyObject` created earlier.

This also allows for more secure access to existing GPU objects.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D11044

Python GPU: Add new methods to port the code templates in the manual

This commit adds a new API tha allow to replace the bgl API in the exemples on:
https://docs.blender.org/api/current/gpu.html

**Overview (New API):**
```
gpu.state: active_framebuffer_get
GPUFramebuffer: read_color
GPUOffscreen: texture_color
```

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D11031

Documentation: Replace the bgl API in the gpu module exemples

Fix gross errors in previous commit

Fix accidental lines removed in the last commit