fix Forth versin of PARSE

[mitra42]

The eForthAndZen version of PARSE is clearly broken - it doens't increment the pointer and eForthOverviewV5 version matches the spec, but clearly the consumers e.g. "(" assume >IN is moved over the parsed string, which it isnt.

For now it is commented out, and the Javascript version kept in use

[mitra42]

Note that neither of them quite match the ANS definition of PARSE at https://www.taygeta.com/forth/dpansa6.htm#A.6.2.2008 which doesnt skip leading delimiters

[mitra42]

Looks like its working now - but note ANS compliance for later see #12