add Method to load TrueTypeFont from file on OC Machine

[ben-mkiv]

so users can store fonts on the OC machine instead of requiring each client to have the font installed

[fan87]

Probably hard or even impossible, loading from an URL is more possible.
There's a packet size limit in Minecraft, and font rendering is on the client-side, which means the server is required to send the font data to the client, but fonts sometimes can be around over 1MB or even 10, which obviously won't work (because it has reached the packet size limit).