Implementing callers for SCAADC readouts

[mexanick]

Description

Caller wrapper for SCA ADC readout Requires clarification on return documentation - see https://github.com/cms-gem-daq-project/ctp7_modules/issues/142

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Motivation and Context

How Has This Been Tested?

Not yet tested, WIP

Screenshots (if appropriate):

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[bdorney]

Is this WIP? Review was requested but I see In Progress tag and WIP in title; please advise.

[mexanick]

Yes, review with suggestion on documenting the resulting array (from @ram1123) is expected. Of course, other comments are also welcome.

[mexanick]

@ram1123 please provide feedback