Add newline tests for #Remove

Tests for 0d13, 0d8232, and 0d8233 added for #Remove,
as per https://github.com/filemakerstandards/fmpstandards/issues/10
Modify #Remove to use Position/Middle instead of GetValue

https://github.com/filemakerstandards/fmpstandards/issues/10
Add newline tests for #GetNameList

https://github.com/filemakerstandards/fmpstandards/issues/10
Add cleanup code to #Remove and simplify a bit
Modify #GetNameList to use Position/Middle

https://github.com/filemakerstandards/fmpstandards/issues/10
Add newline tests for #Filter

https://github.com/filemakerstandards/fmpstandards/issues/10
Modify #Filter to use Position/Middle and add trailing newline if missing

https://github.com/filemakerstandards/fmpstandards/issues/10
Disable ValueCount test for #.

We don't depend on ValueCount() giving correct results.  Instead,
we use PatternCount ( parameters ; Char ( 13 ) ), so that we do not
incorrectly count Char ( 10 ), Char ( 8232 ), or Char ( 8233 ).

https://github.com/filemakerstandards/fmpstandards/issues/10
Merge pull request #11 from johnchristopherjones/master

Modify #GetNameList, #Remove, and #Filter to use Position/Middle instead of GetValue