Different Scales Added

I have updated the Color Frequencies program in the following ways:

• I fixed a bug that caused the game to crash occasionally
• I added several musical scales in addition to the "Standard Octave" in the original version
• Pressing "e" will change the musical scale on which the colors are based
• So far, I am having trouble distinguishing between scales, but perhaps a user will be able to see the difference
• Pressing "0" will release the camera, allowing you to look around by holding the right mouse button
• While in free camera mode, you can also move using WASD
• This will allow you to re-frame your image before taking a screenshot

Let me know if you have any questions or recommendations!  For the record, I got the musical scales used from this website: https://www.pianoscales.org/