When two windows are tiled side-by-side or in complementary quarter-tile
positions, dragging the shared inside edge now resizes both windows
simultaneously.

Fixes #615

When using switch-windows-all to cycle through windows across all
workspaces, marco was grouping windows by workspace rather than using
a global MRU (most-recently-used) list. This caused several issues:

- Sticky windows appeared multiple times, once per workspace
- Window order was confusing (since they were grouped by workspace number)
- Behavior was different from other window managers

Fixed by collecting all windows, sorting them by recency, then building
the tab list from this global list.

Fixes #286

Extend MetaFrameBorders to include shadow and resize borders to
calculate invisible border size. Also added border caching to prevent
recalculating borders on every frame operation.

This is a backport of the following commits from Metacity:
- https://gitlab.gnome.org/GNOME/metacity/-/commit/21e664af
- https://gitlab.gnome.org/GNOME/metacity/-/commit/3c6e269b
- https://gitlab.gnome.org/GNOME/metacity/-/commit/700e87ea

In systems with bamfdaemon running, windows get this property for
finding the dekstop spec file of an application. This can be used to
find the defined icon for any application window that reports this
attribute and provider much better icon matching.

GTK+ has support for the application ID property. This will allow Marco
to reconstruct the path to the desktop spec file and so have access to
all internal attributes (e.g. name, icon, etc.)

find . \( -name '*.h' -o -name '*.c' \) -exec sed -i 'N;/^\n$/D;P;D;' {} \;

Partially restore call to destroy_win in compositor when calling
meta_window_free. This is needed to ensure that we never call
meta_window_get_frame_bounds while windows is destroying.

https://bugzilla.gnome.org/show_bug.cgi?id=751833

Based on commit https://gitlab.gnome.org/GNOME/metacity/-/commit/a9f28dbc26f5211ef08889109db3dc8c7ba76aca