Detangling incubator: virtual nets, tunnels, resource labels, oh my

- virtual networking moved to /apps/virtual; with CLI & REST API
- tunnels and labels moved to /apps/tunnel; with CLI & REST API; UI disabled for now
- protobuf/models moved to /core/protobuf/models
- defunct grpc/rpc registry stuff left under /graveyard
- compile dependencies on /incubator moved to respective modules for compilation
- run-time dependencies will need to be re-tested for dependent apps

- /graveyard will be removed in not-too-distant future

Change-Id: I0a0b995c635487edcf95a352f50dd162186b0b39
diff --git a/providers/bgp/cli/BUILD b/providers/bgp/cli/BUILD
index 3e909c9..5a6b1e6 100644
--- a/providers/bgp/cli/BUILD
+++ b/providers/bgp/cli/BUILD
@@ -1,5 +1,4 @@
 COMPILE_DEPS = CORE_DEPS + CLI + [
-    "//incubator/api:onos-incubator-api",
     "//providers/bgp/cfg:onos-providers-bgp-cfg",
     "//providers/bgp/topology:onos-providers-bgp-topology",
     "//protocols/bgp/api:onos-protocols-bgp-api",
diff --git a/providers/bgp/route/BUILD b/providers/bgp/route/BUILD
index 2966dd3..80d23a0 100644
--- a/providers/bgp/route/BUILD
+++ b/providers/bgp/route/BUILD
@@ -1,8 +1,6 @@
 COMPILE_DEPS = CORE_DEPS + [
     "//protocols/bgp/api:onos-protocols-bgp-api",
     "//protocols/bgp/bgpio:onos-protocols-bgp-bgpio",
-    "//incubator/store:onos-incubator-store",
-    "//incubator/api:onos-incubator-api",
     "//apps/evpn-route-service/api:onos-apps-evpn-route-service-api",
 ]
 
diff --git a/providers/bgp/topology/BUILD b/providers/bgp/topology/BUILD
index 65a90cd..9851523 100644
--- a/providers/bgp/topology/BUILD
+++ b/providers/bgp/topology/BUILD
@@ -1,8 +1,7 @@
 COMPILE_DEPS = CORE_DEPS + JACKSON + [
     "//protocols/bgp/api:onos-protocols-bgp-api",
     "//protocols/bgp/bgpio:onos-protocols-bgp-bgpio",
-    "//incubator/store:onos-incubator-store",
-    "//incubator/api:onos-incubator-api",
+    "//apps/tunnel/api:onos-apps-tunnel-api",
     "//apps/pcep-api:onos-apps-pcep-api",
 ]