Allow user to ignore symbols/files

[ex0dus-0x]

Three more flags for fuzzable analyze:

• --ignore_symbol - skip analysis on symbols
• --ignore_file - for source analysis only, skip file from being parsed with
• --ignore_dir - for source anlaysis only, skip entire folder of files from being parsed

Be sure to allow user to specify multiple symbols/paths (comma separated).

Maybe it might be even better to allow users to specify regex queries as well?