Adding keyhash search

New search added for keyhash strings

--keyhash=<string>

Adding prefix/contains arguments, increasing output clarity

New options for searching.

--prefix=<string>
--contains=<string>

Increased output to show public/private keys

Initial Dero Wallet Gen Release

This is the first release that supports targeting specific suffixes. Simple words with non-repeating letters are easier to target, but maybe you will get lucky :)