common-io: Refactoring and updates to Temp Sensor test cases (aws#1932)

* Refactored and updated tsensor test cases. Added TEST_PROTECT sections and reworked AFQP_IotTsensorTriggerMinThreshold and AFQP_IotTsensorTriggerMaxThreshold. Updated expected return values based on what is defined by the API header file

* Updated AFQP_IotTsensorCalibrationSuccess to test NULL buffer

* Moved semaphore creation into setup phase and added test asserts to check for NULL return

* Create/delete semaphore for each test case

Co-authored-by: Max Wennerfeldt <[email protected]>
Co-authored-by: qiutongs <songqt01@gmail,com>