Lookup a bunch of needles (search terms) in some haystack (the stuff we're searching through) file in pdf or docx format.

Needle file should be in the format:

<term>,<other identifier>

<term2>,<other identifier2>

etc...

Other identifier is useful if you're generating this file and needles are not guaranteed to be unique.

Only pdf or docx haystack supported.

cargo run <needle path> <haystack path>