[PLAT-6615] Add missing exe-kill script
[PLAT-6616] StubCalculationMethod fixes

Removed references to removed firstStubStartIndex,
lastStubStartIndex, firstStubEndIndex and lastStubEndIndex.
[PLAT-6616] StubCalculationMethodFunction update

To match the changes in PLAT-6603 - using ExternalIds instead of
Tenors.
[PLAT-6616] Correct parameter name