Make timeout in await_ha_state longer

This will hopefull help with intermittently failing test on buildbot.
Merge pull request #821 from carueda/platform_instrument_coordination

launch children agents as part of the launch of the parent platform and adjustments per fixes in enhanced resource registry arising from new hasNetworkDevice
default WARN level for oms_simulator; env var oms_simulator.loglevel can used
 to change it
preliminary preparations for port agent coordination