Suggestion: Optimize relative / absolute

[justingolden21]

Instead of convert all to relative or all to absolve, if there was a third button to optimize, that would be helpful. I realize it's not as easy as checking each individual command since sometimes it depends on adjacent commands (for example lines in a row).

A bonus (but certainly not expected) would be to convert all horizontal and vertical l to h and v, and another would be to check for z when a path is already closed and if it ends in a l, h, or v then delete that command, else delete the z.