Added info about s bit format to readme
Added adds tokens to helper
added tests for s-bit
Fixed test to use correct method when testing s bit with convert_binary
Fixed assembler to read s bit information
Added AL tests
Added NV tests
Added EQ test
Removed largely superfluous tests of convert_hex
Added NE test
Added VS test
Added VC test
Added MI test
Add PL test
Add CS tests
Add CC test
Add HI test
Add LS test
Add GT test
Add LT test