Arithmetic function testing error breakdown (CqlArithmeticFunctionsTest).

[bryantaustin13]

CqlArithmeticFunctionsTest fails commentary:

1. "passCount": 181,
   "skipCount": 10,
   "failCount": 21,
   "errorCount": 0

2. Failing tests:
   17 fails "actual": "EvaluationError:FHIR R4 does not support Long/Integer64 values" these should be erroring because longs are not part of r4
   AbsLong
   Add1L2L
   Add1L1L
   LongMinValue
   LongMaxValue
   Modulo4LBy2L
   Multiply2LBy3L
   Multiply1By1L
   Negate1L
   NegateMaxLong
   NegateNeg1L
   PredecessorOf1L
   Power2LTo2L
   Power2LTo3L
   Subtract1LAnd1L
   SuccessorOf1L
   TruncatedDivide10LBy3L

   Known engine issues:
   Divide1Q1Q actual is showing units of g/cm3 which should be 1 as in expected - comment in test referring to discussion in issues
   Multiply1CMBy2CM actual is cm not cm2 which it should be - comment in test referring to making the units multiply

   Various fails:
   HighBoundaryDateTimeMillisecond (Z in actual, not in expected)
   LowBoundaryDateTimeMillisecond (Z in actual, not in expected)