Initial Commit

    Add Keyword Dumper and Initial Keyword Files

    The kwdump program expands a keyword file into individual
    lines appropriate for copying into Lightroom. Pipe the output
    through grep to filter.

    keywords/Life.txt: A large taxonomy keyword set of the tree of life.

    keywords/states/*: Interesting census data for each of the 50 states in
    the US and its 10 outlying territories.

Signed-off-by: Michael Clark <mjc@aspengrove.com>