Pin names like "+V" were incorrectly parsed as doubles leading to broken
comparisons. These caused heap overflows when sorting pin tables
This corrects the comparison so that numeric sorts are only performed
when there is an actual number in the symbol segment. Also adds unit
tests for common error cases
File "rules" has instructional text as comments near top.
2) Convert all text files in repo to LF line ending form.
Any checkout done with "rules" in play will convert the working
tree to native line ending, while keeping repo as LF line ending.