MAINT-8325 Fixed The Save Local dialog disconnects the viewer if you do not choose the save directory files within the first minute

Approved-by: Andrey Kleshchev <andreykproductengine@lindenlab.com>

cmake -E copy does only one file at a time, and older CMake versions don't
handle wildcards. But cmake -E copy is specifically for portability. When the
copy operation itself is Darwin-only, we can count on having 'cp' available.

MAINT-8670 Crash in: LLFace::getGeometryVolume()

Approved-by: Andrey Lihatskiy <andreylproductengine@lindenlab.com>
Approved-by: Andrey Kleshchev <andreykproductengine@lindenlab.com>
Approved-by: Simon Linden <simon@lindenlab.com>

Guarded.

Update KDU stubs in integration test.

Work around MAINT-8675 stale cert in llsechandler_basic for now.

Update stubs for LLTrans::getString in handful of integration tests.

MAINT-8348 [LOVE ME RENDER] Edit Rotation Rings Occluded by Mesh Objects

Approved-by: Andrey Lihatskiy <andreylproductengine@lindenlab.com>

FIXED