Precompiled grammar in its own repo.

To recompile the grammar, run this:

    PERL5LIB=../pegex-pm/lib perl -Ilib -MVIC::Grammar=compile

Putting the grammar in a github repo ingydotnet/vic-pgx
Renaming some files and folders
the grammar is now a separate file taken from the vic-pgx repo
Updating the grammar path for the compiled pm module for quick loading