Allows the ability to override bframes (useful for specific protocols)

Allows the ability to change the output type in case one service
requires a different output type.

NOTE: This should be considered a temporarily yet simple solution to a
specific problem: support for RTMP-like outputs.  This will allows
seamless integration of supporting different RTMP-like output types
within the same service.  This should probably be replaced with a more
ideal solution later, such as implementing a completely different
service type instead, when time permits.

(This commit also modifies obs-outputs)

Closes jp9000/obs-studio#945

Deprecates "Theme" global config value and uses "CurrentTheme" instead
to ensure backward compatibility with older versions of OBS, which will
fail to load if you have a theme that isn't available.

(Jim Edit: Putting this back because I misunderstood the purpose of
jp9000/obs-studio#936)

Closes jp9000/obs-studio#936

Closes jp9000/obs-studio#738

UI: Add new theme, update theme capabilities

obs-qsv11: change re-enter lock implementation

obs-text: Fix file reader occasionally not updating

libobs: Fix an int underflow in log_frame_info

plugins: Clear warnings about -Wincompatible-pointer-types

Adds the ability to zoom into the preview when fixed scaling mode is
enabled.

(Edit by Jim: Also now saves zoom and scroll position)

Closes jp9000/obs-studio#917

(Edit by Jim: Added a check to make sure that the browser source exists
due to the fact that it's technically optional)

Closes jp9000/obs-studio#905

Closes jp9000/obs-studio#879

Change re-enter lock from mutex to atomic variable.

Makes them a bit more equal in size to the eye icon in the main window.

.editorconfig: Add file to speed up editor configuration

Closes jp9000/obs-studio#937

Closes jp9000/obs-studio#948

If size is 0 after popping data from the front or back, set the
start/end points to 0 as well to ensure that any subsequent buffer
pushes start from the beginning of the buffer rather than the middle of
the buffer.  Reduces potential unnecessary operations in that case.

Additionally, this fixes a bug with circulebuf_pop_back where if start
position was 0, and all the data was popped off the buffer (equal to the
capacity), the end position would be equal to the original size.  As an
example to replicate the bug, push 5, pop 5, then push 10.  The
start/end points will be invalid.

Closes jp9000/obs-studio#954

UI: Add functions and events for Studio Mode into the Frontend API

CI: Download deps if they are outdated

Removed LAX server, added new NYC server for Vaughn Live & Breakers.TV

Closes jp9000/obs-studio#933

Add Japanese shortcut keys, non-convert (無変換) and convert (変換) and
disable IME for OBSHotkeyEdit.

Closes jp9000/obs-studio#930

Adds a lock checkbox to allow the user to lock a specific scene item.

Closes jp9000/obs-studio#949

Delayed reading the text file till the update after the timestamp
changes, this should fix a minor issue where if the file updates twice
in one second, only the first change it displayed.

This adds a "Defaults" button in the source and filter properties, which
will clear and reset all settings.

Closes jp9000/obs-studio#875

If a source is created with settings, default values would not be set on
data items that already had values set.  The check here was supposed to
be a not equal rather than an equal because you're not supposed to be
able to set a default value of one type on an item that already exists
but is of a different type.

This bug would make it so that if a particular setting was removed,
there would be no default value to fall back on, and it would always be
0 or NULL for all values.

It's likely this bug wasn't encountered until now because before now
there had been no reason to clear or remove settings on most things.