Restructured testBitfiledRdWr() Method to test only for unsupported bitfields and and read-only supported bitfields
- Cleaner code, eaiser to read, mode modular

Addrd toString() override method to HandleCmd,java. This change was made to obtain the a string value of the current bitfield being read at any point without having to refer explicitly to it by its name

Modified Gradle file to make it support string values on switch statements