Ability to set card variable without recompiling

[ccarels]

Description
The CARD is #defined in params.h but it could be a runtime parameter so that the code does not need to be recompiled to select different cards.

Outcome
Ability to select different cards at runtime.

Timeline
As soon as possible.

Interfaces
Will this feature result in a backwards-incompatible interface change: No.

Expected semantic version number increment category (Please indicate x.y.z): y.

Notes
N/A.

[ccarels]

Subsumed under cc_pipeline_interfaces.