Adding functions to Proxomitron

[lnminente]

Also to avoid problems with already existing positional variables we could use vars specifically named inside these functions. Time or future problems will tell us.

As always by my side, everybody feel free to post modifications to this concept

Maybe we could change the ";" as a separator for parameters because maybe could be problematic if passing it cookies. Anyway it is a per function setting, and can be modified only in functions having problems. But in search of standarization we could define another char since now...