Expand Image module with new functions

[jabraham17]

Adds new functions to the Image module to support more use cases for users.

Changes and improvements to this PR:

• adds a shuffleColors to rearrange an array of colors
• adds a concatImage to concat two images to make one bigger image
• adds a pasteInto to add two images together
• improves error messages from mediaPipe and reduces its verbosity
• adds bounds checking to scale

TODO: add missing doc strings TODO: add tests for new features

[Reviewed by @]