jmelesky/feattools: Tools for querying feats, particularly creating lists of feats that a character qualifies for.

john melesky b064bf5959 add some latex snippets because reconstructing them is a pain		5 lat temu
..
end.snip	b064bf5959 add some latex snippets because reconstructing them is a pain	5 lat temu
mid1.snip	b064bf5959 add some latex snippets because reconstructing them is a pain	5 lat temu
mid2.snip	b064bf5959 add some latex snippets because reconstructing them is a pain	5 lat temu
start.snip	b064bf5959 add some latex snippets because reconstructing them is a pain	5 lat temu