Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

Catkin require a .catkin file in all CMAKE_PREFIX_PATH to add them
to the CATKIN_WORKSPACES. Remove this requirement as it couldn't
be satisfy when catkin packages are installed into the common usr
prefix. Without this adaption catkin couldn't find all files.

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

The local version was replaced by a solution from a catkin
maintainer.

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

The catkin framework need some modification to support cross compiling
packages via yocto. When we want to upstream patches we need to provide
patches against the current groovy-devel branch. Use this branch as base
for our work to simplify the tests and to unify the developing process
of catkin.

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

* Use configuration options instead of patches
* Use relative paths in CMake installation files
* Use catkin class

Signed-off-by: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

patching catkin to remove assertion for rt-library (this must revisited at some later point again when we have a better understanding of the issue.)

maybe it is also good to add the files in standard package to the development package in catkin (commented out because it is not clear yet if it does help eventually)

adding dependencies that have been overseen when creating the image, but that are necessary if one builds catkin stand-alone

we patch catkin as catkin assumes that every linux is an ubuntu system but the openembedded linux system is not

catkin recipe missed to add the python modules to the packages (NB: QA still mentions so files not shipped)

improving catkin recipe so that it does run through (it compiles and installs now, but I am not sure if the installation is correct)