Initial release of LSLFuzzyAutocomplete (2.0)

Originally forked from chendo/FuzzyAutocompletePlugin 1.5

Many bug fixes and improvements, including:
- option to sort by score
- visual feedback on completion list
- visual feedback in inline preview
- useful prefix based on whole match
- optional informative list header
- optional prefix anchor
- settings window
- tweaked formula
- better thresholding
- performance tweaks
- ux tweaks
- ...