v1.1.1

• Updated util.go to have correct error name

Add InsertFromFile

• Added a function to automatically parse, convert, and insert an image file.
• Error-out if Pack is called multiple times.

Added testware

• Removed pixelpack, this will be handled in the pixelutil package.
• Added tests to verify that insertion and extraction are working correctly.

Initial Release

v0.0.1

Remove reference to unused lists