Add program to lookup by hash, for use with make test, add to words.txt, add hashes file

[jamesyoungdigital]

Fix lookup_hash.php even though it's a bit messy. Designed to be used with make test.

Then php test/lookup_hash.php sha1 sha1_hashes.txt

to try it out. Or omit the file name and it goes in interactive mode. Enter hashes, then type quit to exit.

[jamesyoungdigital]

LookupTable.php and MoreHashes.php were added to test directory because of require_once(). Just makes it easier to test things out instead of modifying the require path.

[jamesyoungdigital]

Clean up and add hash creation tool for tests in latest commit.