FrogLord: Compatibility Update

New Features:

• Various UI improvements (Thanks Andy Eder)
• Prevent importing stereo sounds, Frogger does not support them.
• Added support for SLES-0704, Frogger v1.0, EU PSX Demo, US PSX Demo, SLPS01399,
• Added a better remap finder.
• Map viewer has an icon for entities. (Known Bug: Some entities are placed in the wrong place.)
• Add a polygon selector.
• Basic vertex manipulation. (Select a polygon and use your arrow keys.)
• Started work on a 2D interface for the map editor. It doesn't work properly yet.