Enhanced licensing

[tytan652]

Description

Freedesktop SDK has tooling to automatically copy components licenses, but some components needs tweaks.

Motivation and Context

Flathub would appreciate it.

How Has This Been Tested?

Types of changes

• Tweak (non-breaking change to improve existing functionality)

Checklist:

• My code has been run through clang-format.
• I have read the contributing document.
• My code is not on the master branch.
• The code has been tested.
• All commit messages are properly formatted and commits squashed where appropriate.
• I have included updates to all appropriate documentation.