PCEP Protocol code restructured to move under PCEP Server code for more readability. Later Client code can be added under client folder.

Change-Id: Ie79599a170d94d8e0a00e0d034b083b3894199ee
diff --git a/providers/bgpcep/app/app.xml b/providers/bgpcep/app/app.xml
index 77d3c05..4051c53 100644
--- a/providers/bgpcep/app/app.xml
+++ b/providers/bgpcep/app/app.xml
@@ -24,10 +24,10 @@
     <artifact>mvn:${project.groupId}/onos-bgp-ctl/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-pcepio/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-app-pcep-api/${project.version}</artifact>
-    <artifact>mvn:${project.groupId}/onos-pcep-controller-api/${project.version}</artifact>
+    <artifact>mvn:${project.groupId}/onos-pcep-server-api/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-bgp-provider-topology/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-bgp-provider-cfg/${project.version}</artifact>
-    <artifact>mvn:${project.groupId}/onos-pcep-controller-impl/${project.version}</artifact>
+    <artifact>mvn:${project.groupId}/onos-pcep-server-impl/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-pcep-provider-topology/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-pcep-provider-tunnel/${project.version}</artifact>
     <artifact>mvn:${project.groupId}/onos-bgpcep-provider-flow/${project.version}</artifact>