parseFrameOffsets
Update tests to use parseFrameOffsets: image, width, parsed JSON
Rename to splitTiles from splitFrames
getFrames progress
Build frame sequence structure
Fix default frametime parsing
Get frames through getFrames(); working demo
Remove coordinate calculation from parseFramesInfo- splitTiles only needs frame index
Add static and custom frame time to demo
Show JSON in demo
Add animation to demo using setTimeout to change img.src after each frame
Containers around output nodes in demo
Add editable mcmeta json text to demo
Update live demo on keyup, prettify JSON
Change default export to getFrames()
Add usage doc