Move the environment configuration YAML files into the main JAR

This allows configuration to work properly from the nomulus tool.

TESTED=I built and ran it against several environments, and all worked
properly.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=146697124

java/google/registry/config/files/nomulus-config-unittest.yaml

@@ -0,0 +1,30 @@
+# This is the configuration file used by unit tests. These values ARE NOT
+# SUITABLE for use in a real deployed environment.
+
+appEngine:
+  # Tests can't fire up a full server, so make them error out if they try to.
+  toolsServiceUrl:
+    hostName: null
+    port: 0
+
+registryPolicy:
+  registrarChangesNotificationEmailAddresses:
+    - notification@test.example
+    - notification2@test.example
+  defaultRegistrarWhoisServer: whois.nic.fakewhois.example
+  defaultRegistrarReferralUrl: http://www.referral.example/path
+
+datastore:
+  commitLogBucketsNum: 3
+  eppResourceIndexBucketsNum: 3
+  baseOfyRetryMillis: 0
+
+caching:
+  singletonCacheRefreshSeconds: 0
+  domainLabelCachingSeconds: 0
+  singletonCachePersistSeconds: 0
+
+braintree:
+  merchantAccountIdsMap:
+    USD: accountIdUsd
+    JPY: accountIdJpy