Added bof category to cna and cat, vol BOF implementations

[nickvourd]

1. For the initial commit, I added a BOF category to the CNA script. This category registers the commands as Beacon Object Files in the Cobalt Strike help menu.

Organizing the commands under a dedicated BOF category improves usability by grouping related functionality together, making it easier for operators to discover and reference BOF-based commands directly from the help system.

Before:

After:

PS: I checked one by one all the commands registrations and also the cna works properly.

2. For the second commit, I added a cat bof which reads the content of text files.

Usage: cat [filename]

POC:

Cheers!

[nickvourd]

PS: Also I will continue with cna BOF command categorization to Remote-OPs along with some other new bofs there.

[nickvourd]

Also added a vol command implementation.

Usage: vol [drive letter]

Output:

Cheers!