Release GB 0.4.0

[lavinrp]

• [x] Test Windows Build
• [x] Test Windows Unit Tests
• [x] Check Windows Warnings
• [x] Check Linux Build
• [x] ~Check Linux Unit Tests~
• [x] ~Check Linux Warnings~
• [x] Update version number in CMake
• [x] Update test consumer
• [x] Update User Manual
• [x] Update Consumer Template
• [x] Update VCPKG

[gyurgyma]

This is ready to go, but Github Actions are being buggy right now. We are going to wait a day or so before we go ahead and release.

[lavinrp]

0.4.0 Released