{crystal} Add ros-environment-2.2.0.inc: Add ROS_OS_OVERRIDE setting

This has to be version-specific, because "ros-environment" is also the
name of a ROS 1 component with a completely different implementation.

includes-ros1/ros-environment/ros-environment-2.2.0.inc

+# Copyright (c) 2019 LG Electronics, Inc.
+
+require ros-environment_ros2.inc

includes-ros1/ros-environment/ros-environment-ros2/add-os-override.patch

+--- a/CMakeLists.txt	2018-05-31 11:49:33.000000000 -0700
++++ b/CMakeLists.txt	2019-08-16 15:43:11.106602301 -0700
+@@ -17,6 +17,7 @@
+   "1.ros_distro"
+   "1.ros_version"
+   "1.ros_python_version"
++  "1.ros_os_override"
+ )
+ if(CMAKE_HOST_UNIX)
+   set(shell "sh")
+--- /dev/null	2019-06-20 17:41:34.556355144 -0700
++++ b/env-hooks/1.ros_os_override.sh.in	2019-08-16 15:45:12.266604143 -0700
+@@ -0,0 +1,3 @@
++# generated from ros_environment/env-hooks/1.ros_os_override.sh.in
++
++export ROS_OS_OVERRIDE="openembedded"

includes-ros1/ros-environment/ros-environment_ros2.inc

+# Copyright (c) 2019 LG Electronics, Inc.
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/ros-environment-ros2:"
+SRC_URI_append = " \
+    file://add-os-override.patch \
+"