Create a Region of Interest Tracker class

[kathlenemagnus]

Create a class for keeping track of whether a workload is executing in the region of interest as determined by various parameters such as:

• A start and stop instruction count
• A start and stop PC
• A list of privilege modes in the region of interest

The class should support specifying multiple start and stop parameters. For example, if a start count of 1000 is set and the only privilege mode in the region of interest is User mode, then the workload must have executed at least 1000 instructions AND be in User mode to enter the region of interest.

The class should also support non-contiguous regions of interests meaning that the workload may enter and exit the region of interest multiple times.