libobs: Implement and use better scaling function for 64-bit integers

Windows: Taskbar icon & colour

media-playback: Unbuffered Media Source

libobs: Fix potential truncation warnings

Set up dispatcher queue for WGC stability

win-capture: Fail on unsupported Vulkan formats

Fix WGC minimize handling

Suspected necessary for WGC stability.

Suspected necessary for WGC stability.

This reverts commit d777000a, reversing
changes made to c9e5f30a.

cmake: Fix warnings and normalize variables/errors

UI: Install public headers for frontend-api

Previously the api header was not targeted for installation and may have
been missing for third party users.

Expose more levels and profiles for FFmpeg VAAPI

Vulkan hook COM clean up, and extension check

win-capture: Use VkAllocationCallbacks

UI: Use standard resolutions with auto-config

Implement CUBE LUT domain properly, tetrahedral interpolation for 3D LUTs

UI: Don't clip meters when resizing with no input

Show accurate path in Crash dialog

Closes obsproject/obs-studio#2290

obs-ffmpeg: Fix srt output

Redirect non rtmp streaming to ffmpeg-mux instead of previous
ffmpeg-encoded-output which has been removed.

This replaces the ffmpeg-encoded-output which had serious issues
(missing headers, muxing issues with non compliant mpegts streams) with
an output grafted from obs-ffmpeg-mux.

Moves the code that generates a file read error message to its own
function for the sake of cleaning things up a bit.

UI: Hide script tabs if no python settings

UI: Remove language region

win-capture: Reset WGC fail flag for new window

Fixes issue where there are two window handles for minimized Calculator,
and OBS picks the wrong one.

Illegal CopySubresourceRegion parameters were sometimes computed when
minimizing and restoring WGC window captures, leading to device loss.

Add robust safeties to ensure that doesn't happen.

libobs: Return target instead of current in calc_torquef

If the previously calculated torque value is too close to 1.0
(but not considered 1.0), it would be impossible for the TBar to
finish its transition since it returned the old value, causing desync.

WGC will give up on a window that it fails to capture, but that
shouldn't stop it from attempting to capture new windows.

Fixes #2928.

Don't allow unsupported Vulkan formats to fall back to B8G8R8A8.
Probably better to fail completely than do an illegal copy.

Also remove bad conversion for VK_FORMAT_A2R10G10B10_UNORM_PACK32.
Red and blue channels were reversed, and there's no DXGI equivalent.

Addresses #2796. We can do more later if justified.