[PSPDFKit] Update to version 3.6.5
[PSPDFKit] Fix some typos on the 3.6.5 update selectors
Remove declaration of PSPDFFlexibleToolbarPreferredVerticalHeight from the bindings. Fixes #9.
[PSPDFKit] Use IPSPDFAnnotationViewProtocol
[PSPDFKit] Updated to version 3.7.1
[PSPDFKit] Added missing NullAllowed
[PSPDFKit] Update to version 3.7.3
[PSPDFKit] Update to 3.7.5
[PSPDFKit] Add PSCSimpleDrawingPDFViewController sample
[PSPDFKit][3.7.5] Fix Typo in setSignatureSource
[Samples] Fixed and enhaced some samples
[PSPDFKit] Update to version 3.7.11
[PSPDFKit] Bump README version
Updated to 3.7.14