control: Add getBus() and getGroups() functions for triggers

Event triggers will need to retrieve the sdbusplus bus object and each
actions set of groups when being created.

Change-Id: I7309ebbae6fb0c0df98f5dfaa89c9063b0d97719
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
2 files changed