Blender Git Loki

Cleanup: unused variable warning

Also remove unnecessary function return value.

Cleanup: clang-format

UI: rename "Select Playhead" to "Select -> Side of Current Frame"

Make this consistent with meshes select side of active,
also rename "Under" to "Overlap" as this is confusing since
strips can be considered above/under each other
relative to their channels.

UI: use term current frame instead of playhead

Avoid mixing different terminologies up,
current frame is used in a majority of Blender.

Cleanup: warning

Fix T77043: Incorrect cache invalidation when changing resolution.

Invalidate cache of scene, not scene strips using said scene.

Cleanup: error building on Linux

Fix T67577: Add-on unregister can't access preferences on factory reset

VSE UI: Text panel adjustments

This patch adjusts a number of text panel elements:

- The text entry widget has become larger in order to distinguish it from the strip name.
- Wrap has been moved up under the text, since this doesn't relate to bounding box.
- Alignment X/Y has been renamed to Anchor X/Y, since this is the achor point of the text point, and not the Alignment of the text.
- Offset and Crop was completely missing from the Text strip panel, these has been added.

Reviewed By: billreynish

Differential Revision: https://developer.blender.org/D7869

VSE UI: Add a proxy menu to Preview/View menu

Add Proxy Setup, Build and View to a menu in the Preview View menu.

Reviewed By: ISS, billreynish, pablovazquez

Differential Revision: https://developer.blender.org/D7734

VSE: Use color picker for color strip.

Reviewed By: billreynish, ISS

Differential Revision: https://developer.blender.org/D6114

VSE: Add warnings for failed proxy encoding

Add more descriptive warnings if building proxy fails.
Prevent progressbar from showing if no valid strip is selected.

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D7689

VSE: Add select under playhead, and shortcuts for left, right, under.

Add `UNDER` option for `left_right` property of `sequencer.select` operator.
Add Equal as shortcut for select under playhead, and move Insert Gaps to backspace + ctrl.
Add extend shortcut for left, right under options.
The function is added to Select > Playhead menu.

Reviewed By: ISS

Differential Revision: https://developer.blender.org/D7679

Merge branch 'blender-v2.83-release'

Cleanup: warnings

Cleanup: Remove unnecessary step in calling snap callback

Fix T77194: Force global orientation on select constraint (Shift MMB) not working

This feature was a hack to prevent mmb select to print the orientation from menu in pre 2.80 versions.
Removing this feature as it is no longer an issue.

Deps: Update OIIO + ImageLibs + OSL + Helpers

This is the cluster of OIIO and friends , since they are all kinda tangled best to deal with this as a single unit

OIIO 2.1.15.0
png 1.6.37
jpeg 2.0.4
opencolorio 1.1.1
tiff 4.1.0
OSL 1.10.10
pugixml 1.10
openjpeg 2.3.1

Differential Revision: https://developer.blender.org/D7727
Reviewed by: brecht

Deps: iconv 1.16

Fix T77206: G + MMB Doesn't work in Graph Editor if the transform orientation is set to 'Local'

Scene orientation is used only for 3DView.