[[ Bug 12037 ]] Cache DCs used for measuring and drawing text on Windows.
[[ Bug 12223 ]] Scale backdrop window to account for screen pixelScale on Win32
[[ Bug 12037 ]] Added release note.
Merge branch 'bugfix-12037' into release-6.6.2
Merge branch 'bugfix-12223' of https://github.com/runrevian/livecode into bugfix-12223
Merge branch 'bugfix-12223' into release-6.6.2
Merge branch 'release-6.6.2' into develop