1. Updated license abbreviations in font.ini
2. Removed duplicate license file in Suwannaphum
3. Corrected license for some fonts
4. Added licenses/LICENSES file to note license related issues and
abbreviations
Bug: 53281
Change-Id: Ia3aa6396cf5197c6baaff716d27682dd23b7674e
Not making it default for now, to allow more testing by the community.
Other KhmerOS fonts are removed as per community request.
See: https://bugzilla.wikimedia.org/show_bug.cgi?id=53673#c9
Bug: 53673
Change-Id: I4e01dd19d1e8a4e10b6ba150ea912c6f352e6cbe