[PowerRename] invoke via command prompt

[crutkas]

another use-case (that interests me) is to rename downloaded file names using regEx with PowerRenamer,

i have files with the pattern: S1E12 or S1E4 inside the name,

i have to run the tool twice in order to replace all files,
once for the single digit names (and pad them with leading zero),
and a second time for double digits names,

so a command-line interface to be able to run a rename command with the parameter twice from a single batch would do the trick

Originally posted by @shaybc in #3301 (comment)

[crutkas]

good idea by @shaybc, something that isn't planned by us in the near term