Make pylookup first argument (column_to_fill) case insensitive; updat…

…e version

Fix bug in CLI and make user-provided column matching less case sensi…

…tive; update version

Switch order of arguments to be pylookup(column, data_with_column, da…

…ta_to_populate_with_column); update version

Improve error handling; increase scoring when a val matches a main va…

…l exactly; add Python 3.10 to supported versions; update version

Improve performance by 20%+

Get initial CLI working; update README; update version

Fix bug of trying to sample small dataframe