DesktopDuplication call releaseFrame before acquireNextFrame#373

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Womifa wants to merge 3 commits intopsieg:masterfrom

Commits on Jul 15, 2020

Chnges to DesktopDuplication to conform to Guidelines ( https://docs.microsoft.com/en-us/windows/win32/api/dxgi1_2/nf-dxgi1_2-idxgioutputduplication-releaseframe )
Womifa
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Commits on Aug 21, 2020