release: update CHANGELOG for v0.32.0

Signed-off-by: deadprogram <[email protected]>

docs: updates for v0.31.0

Signed-off-by: deadprogram <[email protected]>

docs: updates for v0.31.0

Signed-off-by: deadprogram <[email protected]>

OpenCV 4.6.0

Updates for release 0.30.0

Signed-off-by: deadprogram <[email protected]>

OpenCV 4.5.5

OpenCV 4.5.4

OpenCV 4.5.3

OpenCV 4.5.2