[FAB-5363] NodeSDK - common config part 2

Have the NodeSDK provide automatic selection
of orderers and peers based on the network config
and the roles assigned to the peers.
Provide built-in CA access to enroll users with
the CA defined in the network configuration.
Provide a means to have a admin signer asigned to
the client as defined in the configuration. Allows
for easy access to the admin for requests that require
admin authority.

Change-Id: I08df1445fe535b543b42f7d82c8a407dcee49444
Signed-off-by: Bret Harrison <beharrison@nc.rr.com>

Author: harrisob

build/tasks/test.js

@@ -96,7 +96,8 @@ gulp.task('test', ['clean-up', 'lint', 'pre-test', 'docker-ready', 'ca'], functi
 		'test/integration/e2e/query.js',
 		'test/integration/invoke.js',
 		'test/integration/perf/orderer.js',
-		'test/integration/perf/peer.js'
+		'test/integration/perf/peer.js',
+		'test/integration/network-config.js'
 	]))
 	.pipe(addsrc.append(
 		'test/unit/logger.js' // put this to the last so the debugging levels are not mixed up