Allow for verification (or other verb) of the consistency/presence of all the elements in an arrangement

[larsvilhuber]

Suggested command:

verify (see other issue)

or

validate (as a synonym)

Would take as arguments a specific arrangement, a possible path modifier, and allow to check if all the files described in the TRO and present in the path are listed/not listed/different/same.

[larsvilhuber]

Re-upping this @Xarthisius as it is a first-order activity that users would do.