Updated example flat mode JSON represnetation
Added regex and function for checking valid mode-strings to shared module
Fixed a typo in docstring of a method in parser; presence of a breaker (--) now adds context to parsing
Mode now has method for setting and getting accepted operand types
Checker can check mutual compatibility between operands types list length and independently set range, can also check validate operand ranges based only type list length
Tests for new functionality in RedCLAP