Add Devtool project

Change-Id: I7db8dfd8ccd6b75baf49a8b5e89f7d4ead4461bd
Signed-off-by: Victor Morales <victor.morales@intel.com>
Issue-ID: DOC-261
diff --git a/.gitmodules b/.gitmodules
index f89d08e..6ba62e1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -312,3 +312,8 @@
 [submodule "docs/submodules/vnfrqts/usecases.git"]
 	path = docs/submodules/vnfrqts/usecases.git
 	url = ../vnfrqts/usecases
+[submodule "docs/submodules/integration/devtool.git"]
+	path = docs/submodules/integration/devtool.git
+	url = ../integration/devtool/
+	branch = .
+	ignore = dirty