* Move sentry3 current and voltage sensors to YAML, add power to YAML, fix voltage for three-phase
* Sentry3: add systemTotalPower and systemPowerFactor
* sentry3: note that voltage and power factor are configured, not measured
* sentry3: group names to indicate sensors which are configured, rather than measured; prefix current index with infeedID to match previous PHP discovery
* sentry3: add ouprefix to outlet current to match previous PHP discovery index
* sentry3: restrict to recording voltage to only the first feed of each tower, to match previous indices
* sentry3: add snmprec from 3-phase CS-24V4-P32MA
* sentry3: attempt to fall back to Infeed
* sentry3: laravel blade fallback fix
* update tests instead of trying to fall back to old-style descriptions
* sentry3: update expected voltage in test, too
* typo
* fix test
* fix outlet OIDs ; update snmp test data with missing names ; regenerate test output
* add missing num_oids for power
* num_oid requires index, even for system-wide values
