add bringUpAllRingsInSequence

Feature: add bringUpAllRingsInSequence()

Intended for developer use.

This function brings up all rings, but in sequence instead of one by one. This way, when there is a problematic ring the log messages appear in order and it is easier to identifier where the problem is coming from.

API change:

• New method, rmmStatus bringUpAllRingsInSequence()
• rmmStatus config(TimingMode timingMode = TimingMode::LCL) will not accept another optional argument
• New enum, enum class BringUpMode { CONCURRENT, SEQUENCTIAL }

To use these changes

• nice/dev-epics-modules/rmm!36 adds RMM APIs
• nice/guis/gui-rmm!21 (merged) adds OPI

Closes ICSHWI-20691