[PLAT-6518] Test new properties in fair value calculator

Reviewed by Stuart W.
[PLAT-6520] Summarize tests for Greek calculator

Also include [PLAT-6518].
Reviewed by Stuart W.
[PLAT-6519] Handle singular integrands

Reviewed by Stuart W.
[PLAT-6513] Add constructor specifying strike range

Reviewed by Stuart W.
[PLAT-6516] Consistency between fair value calculator and Greek calculator

Reviewed by Stuart W.