Related: tdf#128186 stop Skia/Metal flicker in full screen mode transitions

Let vcl use the CAMetalLayer's hidden property to skip the fix for
tdf#152703 in external/skia/macosmetal.patch.1 and create a new
CAMetalLayer when the window's frame changes.

When using Skia/Metal, flushing to an NSWindow during transitions
into or out of native full screen mode causes the Skia/Metal surface
to be drawn at the wrong window position which results in a noticeable
flicker.

Also, enable the standard macOS animation by only suppressing
animation when in internal full screen mode. LibreOffice's internal
full screen mode fills the screen with a regular window so skipping
the macOS animation makes sense for that case, but it appears very
abrupt when transitioning to a window that is smaller than the screen.

Lastly, fix several incorrect conversions between window content and
frame rectangles during full screen mode transitions.

Change-Id: I0e620ea2f727977921c0fdb63b9995b4e77eb161
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/183307
Reviewed-by: Patrick Luby <guibomacdev@gmail.com>
Tested-by: Jenkins

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