Merge branch 'feature/git-submodules' into 'master'

ES-274 Added git-perltools which installs git-submodules.

See merge request vesta/meta-vesta!47

recipes-vesta/images/vesta-image-developer.bb

@@ -20,6 +20,7 @@ IMAGE_INSTALL_append += " \
     packagegroup-volansys-gw \
     packagegroup-volansys-gw-demo \
     paho-mqtt \
+    git-perltools \
     python \
     python-dev \
     python-pip \