add option to replace Randomised string

[k-Jithesh]

Similar to Fixed String, Token etc, can there be another option to add random generated string. This would allow the tool to work as bulk anonymizer as well.

[rappen]

Great idea!
I will add this to the Calculate / XRM Token.
I can't really give you a date, sorry.
Using simple calculate like this gets you some "random" so far...
<system|now|fff>

[rappen]

Created is this issue: rappen/Rappen.XTB.Helper#14