Place Proper Licensing on all Files

[Phantom139]

This is a kind of important-ish item that should be done at the earliest convenience. Since the engine is released fully open source now and under the MIT license, the source code files should be adjusted to reflect these changes.

Here's what should be placed at the top of each file:

XX.XX
Y
Copyright (c) 20ZZ, Phantom Games Development

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL     THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

Where X.X is the file name & extension, Y is a description of the file, and Z is the year of copyright.

[Ragora]

Alternatively you could probably just say to refer to something like LICENSE.txt like I've been doing.

"This software is licensed under the MIT license. Please refer to MIT.txt for more information." This way your source files are a bit smaller and it accomplishes the same task anyway.

[Phantom139]

Started doing this in fb486fa. Going to complete issue #27, and then this.

[Phantom139]

Done.