Hi there

Some news:
- The case insensitive search is ready and working well at almost nominal speed.
- For the search with wildcard, the speed is still very low, in that case I have to calculate the full base58 address for each generated point and the base58 is very slow, so I'm trying to implement this at the GPU level.
- I will also add an encryption mechanism for the output file and think to a manner to have a safe command line.