Support for disabling/enabling PD after setup

[sidcha]

To give the feeling of PD hot-plug, we will add a new CP API that allows the app to disable/enable a PD managed by that CP.

• By default all PDs would be enabled to retain existing behaviour
• When a PD is disabled, it must be brought to a safe state before letting it idle
• When a PD is enabled, it starts up as it would during setup
• Commands/Events should not work for disabled PDs

Discussed in #183

^{Originally posted by MLastAirBender June 10, 2024}
Is there any way to increase the multi drop client from 2 to 4 during run time?
I don't want to reset or stop the things which are running but want to increase the number of readers on the same port.