Added JSON output to for ntlm, lsa secrets (plaintext only), and cached credentials

[deadjakk]

I Added an additional option and corresponding function to allow for JSON output to be generated. Something I have wanted for awhile and given how ubiquitous easy-to-use JSON is, this change should allow for quick and easy parsing into other tools for automation, logging, etc. All outputs also include their original 'answer' formats.

An example of it running:

Also: I was unsure if the json-output flag should be exclusive of the traditional format or not, for the time being, and to err to the safe side, the option currently generates the JSON format in addition to the original format.