Modify TRIM for /with argument and /auto bug.
Modify TRIM for /with argument and /auto bug.

Allow /with to take bitset! argument.
Add incompatible refinement tests for string!
Offload bitset creation to CHARSET.
Fix bug in /auto where first spaces were not fully removed.

draegtun/ren-c,codebybrett/ren-c,draegtun/ren-c,giuliolunati/ren-c,codebybrett/ren-c,giuliolunati/ren-c,hostilefork/rebol,giuliolunati/ren-c,rgchris/ren-c,giuliolunati/ren-c,rgchris/ren-c,kealist/ren-c,kealist/ren-c,kealist/ren-c,draegtun/ren-c,kealist/ren-c,draegtun/ren-c,giuliolunati/ren-c,rgchris/ren-c,hostilefork/rebol,hostilefork/rebol,draegtun/ren-c,codebybrett/ren-c,codebybrett/ren-c,rgchris/ren-c,rgchris/ren-c,codebybrett/ren-c,codebybrett/ren-c,hostilefork/rebol,hostilefork/rebol,kealist/ren-c,draegtun/ren-c,kealist/ren-c,hostilefork/rebol