Refactor: Rename ResourcePath to Resource for a better name

Also the followings
- Rename variables from path to resource
- Update Javadoc

Change-Id: I07da7e7d13882f2134a3687c66ed91a9de5b0849
diff --git a/core/store/serializers/src/test/java/org/onosproject/store/serializers/KryoSerializerTest.java b/core/store/serializers/src/test/java/org/onosproject/store/serializers/KryoSerializerTest.java
index 9ee9cd9..a986278 100644
--- a/core/store/serializers/src/test/java/org/onosproject/store/serializers/KryoSerializerTest.java
+++ b/core/store/serializers/src/test/java/org/onosproject/store/serializers/KryoSerializerTest.java
@@ -62,7 +62,7 @@
 import org.onosproject.net.flow.FlowRule;
 import org.onosproject.net.flow.FlowRuleBatchEntry;
 import org.onosproject.net.intent.IntentId;
-import org.onosproject.net.newresource.ResourcePath;
+import org.onosproject.net.newresource.Resource;
 import org.onosproject.net.provider.ProviderId;
 import org.onosproject.net.resource.link.BandwidthResource;
 import org.onosproject.net.resource.link.BandwidthResourceAllocation;
@@ -374,19 +374,19 @@
     }
 
     @Test
-    public void testResourcePath() {
-        testSerializedEquals(ResourcePath.discrete(DID1, P1, VLAN1));
+    public void testResource() {
+        testSerializedEquals(Resource.discrete(DID1, P1, VLAN1));
     }
 
     @Test
     public void testResourceKey() {
-        testSerializedEquals(ResourcePath.discrete(DID1, P1).id());
+        testSerializedEquals(Resource.discrete(DID1, P1).id());
     }
 
     @Test
     public void testResourceAllocation() {
         testSerializedEquals(new org.onosproject.net.newresource.ResourceAllocation(
-                ResourcePath.discrete(DID1, P1, VLAN1),
+                Resource.discrete(DID1, P1, VLAN1),
                 IntentId.valueOf(30)));
     }