sptrans: rewrite 'pprint.inc' module

[thwill1000]

To have the API:

' @param  token$       text for token.
' @param  type%        type of token.
' @param  num_spaces%  number of spaces between this token and the previous token.
' @return              1 on success, 0 on failure - error message in sys.err$.
Function pp.print_token%(token$, type%, num_spaces%)

In addition options should be pushed to it (and stored in its variables) instead of it pulling them from options.inc.