Blender Git Loki

More Brush Appearance Panel tweaks

* Always show this panel. Previously, it wouldn't get shown for the Eraser,
meaning that if you accidentally changed a brush to an eraser, you couldn't
change it back

* Always allow changing the brush icon. Previously, this could only be done
for "Draw" brushes, but there isn't really any reason why this shouldn't
be allowed.

Brush Appearance Panel - Cleanup + Tweaks

* The "Draw" case was discarding the settings.brush value and redefining
its own brush variable. Reoranised code so that this doesn't need to
happen
* Reorganised order of properties - all brush type/icon related stuff
comes first now
* Remove extra/excess layout elements/lines

Don't collapse "Brush Appearance" panel

It's in a tab by itself already, so there's no need to make ti even harder
to access its settings.

Merge branch 'blender2.8' into greasepencil-object

Change library order

Merge branch 'blender2.8' into greasepencil-object

Conflicts:
build_files/cmake/macros.cmake

UI: Move brush type to appearance panel

This option is not used all the time and putting in the main panel, near of the brush selector, can be weird for the user.

Cleanup: use MEM_SAFE_FREE

Merge branch 'blender2.8' into greasepencil-object

Do not draw fill control lines in multiwindow

If enable the fill control lines, these must be drawn only in the current window.

Cleanup: Warnings and Codepage errors

Merge branch 'blender2.8' into greasepencil-object

Enable Loop Onion in Relative mode

Fix link Palette error with textures

The link was not loading the referenced images.

New Onion Skinning Loop option

When draw an animation with a loop it's very useful to have an indication of the first frame.

Some changes in the order of the parameters too.

UI: Move angle factor to top of the panel

Merge branch 'blender2.8' into greasepencil-object

Replace Random checkboxes by Factors

As we have a new Random section in the stroke panel, it's not logic to have buttons in the main panel.

Now, these random parameters work equal to other random factors.

UI: Remove unlink text for default palette

This is not standard and we remove while we found a better solution.

Outliner: Clicking on GP Layers will activate them