GeoJS Texture Testing

[BryonLewis]

Resolves #318

GeoJS has been updated to have RGBA, Luminance and Luminance Alpha textures.

Bugs:

• Clicking Save Icon before finishing the current mask you are editing
• When saving a new mask the loaded doesn't seem to convert properly for the new mask
• When deleting a track and starting a new one, the old masks seems to remain in memory when editing the new track

TODO:

• Update rendering to utilize the new WebGL Texture system
• Check saving of new textures in the editor to make sure it is using the WebGL system
• Double check that loading from a zip file still works
• Create large dataset for testing purposes (longer video with lots of textures)
• Adjust worker tasks so it doesn't attempt to load all masks when launched, load 5-10 seconds around the current location.
• Play more around with different sizes, maybe make it so the user can decide how much time to load when jumping to a different section
• Ensure it is using only the visible tracks instead of all tracks
• Allow for smaller sizes up to 0.1 seconds
• Add an automatic pause until the frames are loaded for the next section
• Update calculate so it happens before jumping to a new section.
• Add in the TooManyMasks warning
• Double check the limit of texture size to make sure it doesn't cause issues.