Extends the combinator submenu (option 6) with two new attacks using
hashcat-utils binaries that were already compiled but unused.
- hcatCombinator3: 3-way wordlist combination via combinator3.bin piped
to hashcat stdin
- hcatCombinatorX: 2-8 wordlist combination via combinatorX.bin with
optional --sepFill separator, piped to hashcat stdin
- combinator3_crack handler: prompts for 3 comma-separated wordlist paths
- combinatorX_crack handler: prompts for 2-8 paths plus optional separator
- combinator_submenu updated with options 5 and 6
Closes#84, closes#85
