Fix License -> BSD and update maintainers (Kinovarobotics#146)

- related to: ros/rosdistro#37893
  - Fixes the license in the package.xml they should be BSD
  - The top level package is BSD
- related to: ros2-gbp/ros2-gbp-github-org#291
  - And to: ros2-gbp/ros2-gbp-github-org#294
  - Adds @moriarty @felixmaisonneuve and @martinleroux

Signed-off-by: Alexander Moriarty <[email protected]>

Author: moriarty

kortex_bringup/package.xml

@@ -9,7 +9,7 @@
 
   <maintainer email="[email protected]">Marq Rasmussen</maintainer>
 
-  <license>Proprietary</license>
+  <license>BSD</license>
 
   <buildtool_depend>ament_cmake</buildtool_depend>
   <buildtool_depend>ament_cmake_python</buildtool_depend>

kortex_driver/package.xml

@@ -4,8 +4,11 @@
   <name>kortex_driver</name>
   <version>0.0.0</version>
   <description>ROS2 driver package for the Kinova Robot Hardware.</description>
+  <maintainer email="[email protected]">Alex Moriarty</maintainer>
+  <maintainer email="[email protected]">Felix Maisonneuve</maintainer>
+  <maintainer email="[email protected]">Martin Leroux</maintainer>
   <maintainer email="[email protected]">Marq Rasmussen</maintainer>
-  <license>Proprietary</license>
+  <license>BSD</license>
 
   <buildtool_depend>ament_cmake</buildtool_depend>