Enable unicode rc support

This fixes #886 by enabling UTF-8 encoding for our resource files allowing the user to enter copyright symbols and such into the LateralGM game settings dialog. LGM already had the UTF-8 encoding so no other fixes are necessary.

This follows the same solution as a Code::Blocks project.
http://forums.codeblocks.org/index.php?topic=19354.0;wap2

![Unicode Incompatible with GM8](https://cloud.githubusercontent.com/assets/3212801/5424955/c02936c8-82d1-11e4-8136-567d1f324255.png)
![Unicode RC Working](https://cloud.githubusercontent.com/assets/3212801/5424956/c741eb62-82d1-11e4-9e11-c2f6fac170c5.png)