add capabilities to encoder.NewOrdererOrgGroup #197

Job	Run time
Basic Checks	3m 21s
Unit Tests	7m 4s
Integration Tests (raft)	11m 41s
Integration Tests (pvtdata)	10m 46s
Integration Tests (pvtdatapurge)	4m 30s
Integration Tests (ledger)	12m 14s
Integration Tests (lifecycle)	3m 28s
Integration Tests (e2e smartbft)	20m 35s
Integration Tests (discovery gossip devmode pluggable)	5m 31s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	16m 45s
Integration Tests (sbe nwo msp)	6m 54s
	1h 42m 49s

Provide feedback