New Splash Screen, Makefile and minor fix

New Things:

• Added splash screen when starting the program
• Added higher resolution icon
• If the icon is in the same directory as the .exe the icon will display in the gui
• Fixed an unhandled exception that was raised when clicking cancel in the color selection screen
• Updated the .exe file
• Added a Makefile to make generating the .exe files easier
• People can build their own .exe's with make if they get false positives from their virus scanners