* Add an Int64 type
* Use the new Int64 type so that even 32 bit builds can specify max_operations above 2^31
* Missed a spot
* go mod vendor
* fix cast
* changelog
* Update unit test to ensure this works on both 32 and 64-bit archs
* Refactor table driven tests to use subtests
* sdk/framework: add TypeSignedDurationSecond FieldType
Adds the TypeSignedDurationSecond FieldType which accepts positive and
negative durations. The existing TypeDurationSecond FieldType does not
accept negative durations.
* Add tests for 0 for TypeDurationSecond and TypeSignedDurationSecond
