UI: Make stats dockable

Add compiler checks to avoid VLA

win-ivcam: Remove and prohibit useless member functions

UI: Fix not all projectors using ProjectorAlwaysOnTop

linux-jack: Fix snprintf format specifier

VLA are more complex thus generating much more code. Alternatives can
be used when VLA are needed.

See: https://outflux.net/slides/2018/lss/danger.pdf - Pages 6, 7 and 8

UI: Blacklist LockApp and Text Input from Game Capture

Occasionally users accidentally select the following applications built
into Windows 10 using game capture, which cannot be captured.
This PR simply hides them from the game capture list.
The latter takes up 6 entries in the dropdown.

LockApp.exe - the lock screen which doesn't run in user space
WindowsInternal.ComposableShell.Experiences.TextInput.InputApp

UI: Add retina support and updated icons

UI: Name parameters in definition same as in declaration

rtmp-services: add STAGE TEN

rtmp-services: Remove offline/unavailable servers/services

UI: Add various shortcuts for filters window

UI: Add rename scene/source shortcut

libobs-opengl: Store FBOs per texture instead of per device

OBS Studio currently does not support retina rendering for any of the
images in the app. This adds support for retina pixmap rendering as
well as adding higher resolution versions of each icon that was not
a high enough resolution to support 2x. The icons work when switching
themes and will only render the 2x versions when the device pixel
ratio is greater than or equal to 2.

I also added credits to the readme for images that were already being
used that require credit to the author. If the OBS community has
paid for these images already, I can remove the credits from the
readme. The credit is for the invisible, visible, and gear icons.

This creates a hidden QAction in sceneDocks and sourceDocks so we can
assign a shortcut to perform the renaming action.

The previous model stored a new FBO per texture width/height/format on
a array in the device struct. This allocated memory was only released
on gs_device_destroy (obs exit).

The new approach stores a FBO on gs_texture and the its info is
destroyed once the texture is deleted.

It would only check whether it should download a package if the 32bit
version existed.  This would cause it to not download all files
correctly to update 64bit installs (post 22.0.1).

This reverts commit 2ce46965.

This reverts commit fba2ff8b.

Fixes a bug where removing quick transitions with no hotkey would
unintentionally remove the "start streaming" hotkey.  Hotkeys must be
initialized to OBS_INVALID_HOTKEY_ID (-1) instead of 0.  Hotkeys should
really be one-based rather than zero-based.

UI: Use AlwaysOnTop option for windowed projectors

UI: Fix a rare multiview crash when clicked

This was triggered by openning a fullscreen projector and trying to alt
tab. The projector was still on top but the first click on a KDE system
was returning a NULL activeWindow.

Normally on macOS, scrollbars are supposed to appear/disappear as you
scroll, but they would be on top of the content you're scrolling.
However, Qt has a bug where if you apply a custom theme to scroll bars,
they no longer disappear.  This causes things under the scrollbar (such
as the lock icons in the sources list) to disappear under the scrollbar,
because macOS normally expects those scrollbars to face out.  This fixes
that issue by adding a space to the end of the sources list box items to
allow space for the scrollbar.