chatter: Adding initial chatter stubs without any dependencies

The recipes are supposed to cross-compile and install the chatter
example. In this commit, the recipe do not contain any dependencies
and configure does not run through yet.

recipes-ros/chatter/chatter-msgs_git.bb

+DESCRIPTION = "The chatter_msgs package"
+SECTION = "devel"
+LICENSE = "BSD"
+LIC_FILES_CHKSUM = "file://package.xml;beginline=7;endline=7;md5=d566ef916e9dedc494f5f793a6690ba5"
+
+DEPENDS = ""
+
+SRC_URI = "git://github.com/bmwcarit/ros_chatter.git"
+
+SRCREV = "${AUTOREV}"
+PV = "1.0.0+gitr${SRCPV}"
+
+S = "${WORKDIR}/git/chatter_msgs"
+
+inherit catkin

recipes-ros/chatter/chatter-receiver_git.bb

+DESCRIPTION = "The chatter_receiver package"
+SECTION = "devel"
+LICENSE = "BSD"
+LIC_FILES_CHKSUM = "file://package.xml;beginline=7;endline=7;md5=d566ef916e9dedc494f5f793a6690ba5"
+
+DEPENDS = ""
+
+SRC_URI = "git://github.com/bmwcarit/ros_chatter.git"
+
+SRCREV = "${AUTOREV}"
+PV = "1.0.0+gitr${SRCPV}"
+
+S = "${WORKDIR}/git/chatter_receiver"
+
+inherit catkin

recipes-ros/chatter/chatter-sender_git.bb

+DESCRIPTION = "The chatter_sender package"
+SECTION = "devel"
+LICENSE = "BSD"
+LIC_FILES_CHKSUM = "file://package.xml;beginline=7;endline=7;md5=d566ef916e9dedc494f5f793a6690ba5"
+
+DEPENDS = ""
+
+SRC_URI = "git://github.com/bmwcarit/ros_chatter.git"
+
+SRCREV = "${AUTOREV}"
+PV = "1.0.0+gitr${SRCPV}"
+
+S = "${WORKDIR}/git/chatter_sender"
+
+inherit catkin