GH-477 update snapshot release

GH-477 Icepdf 7.4.0 and related cleanup (#478)

GH-475: Fix color assignment of text markup annotations (#476)

GH-472 supporting version 9.4.0 for better or worse. (#473)

GH-469 update license headers (#471)

GH-456 pdf/A write compatibility (#459)

GH-466 rework getSetupDialog position calculation (#467)

GH-469 update license headers (#470)

GH-468 update dependencies to latest versions.

GH-465 Update README.md for 7.3.2 release

GH-458 fixes issue where unaltered document isn't copied to the specified output stream during incremental update. (#464)

GH-457 add signed timestamp support (#463)

GH-457 improved certificate validation and time stamp validation (#462)

[GH-460] improved recent files string parsing (#461)

GH-449 Fixes saving file signed with PKCS11 (#455)