Rename Trotter functions

[TysonRayJones]

to make applyTrotterized prefix consistent! Then...

applyControlledTrotterizedPauliStrSumGadget
applyMultiControlledTrotterizedPauliStrSumGadget
applyMultiStateControlledTrotterizedPauliStrSumGadget
applyNonUnitaryTrotterizedPauliStrSumGadget

would become

applyTrotterizedControlledPauliStrSumGadget
applyTrotterizedMultiControlledPauliStrSumGadget
applyTrotterizedMultiStateControlledPauliStrSumGadget
applyTrotterizedNonUnitaryPauliStrSumGadget

and be consistent with

applyTrotterizedUnitaryTimeEvolution
applyTrotterizedImaginaryTimeEvolution
applyTrotterizedNoisyTimeEvolution

The consistent applyTrotterized prefix emphasises the action of the function is approximate, and makes visually distinguishing the operations easier. Everything after the Trotter morpheme specifies the approximated operation, including whether it is non-unitary.

[TysonRayJones]

#678