New functions

[rad10]

With Offensive Securities new update of searchsploit, I now need to work on including the new functions brought by the new program.

Functions to build

• --strict - Perform a strict search, so input values must exist, disabling fuzzy search for version range e.g. "1.1" would not be detected in "1.0 < 1.3")
• --verbose - Display more information in output
• --help - Show this help screen
• --install - A program I want to include. Can be used to directly install a source database from the application