Change handling of unmapped platform packages for OpenEmbedded (#223)

[herb-kuta-lge]

• Use ${ROS_UNRESOLVED_PLATFORMPKG} as the mapped value when isn't resolved by entries in rosdep/*.yaml and add assignments of the form

  ROS_UNRESOLVED_PLATFORMPKG = "UNRESOLVED-"

  to conf/ros-distro/include//generated-ros-distro.inc . These assignments are then manually overridden in conf/ros-distro/include//ros-distro.inc as the mappings are determined. This make possible rapid iteration because superflore need not be rerun until rosdep/*.yaml are updated with all of the new mappings.

• Drop using the OpenEmbedded Layer Index to guess the mapping of an unresolved platform package. It would often guess wrong, requiring a rerun of superflore. This change means that there is no longer a dependency on "bs4" and that yoctoRecipe.rosdep_cache is now only used to generate rosdep-resolved.yaml .

• Also, rename generate_rosdistro_conf() to generate_ros_distro_inc() so that it corresponds to the name of the file it generates.

[shr-project]

Hi @allenh1 is there anything blocking this PR? We're almost ready to publish updated meta-ros with recipes generated with superflore modified with all these open PRs and it would be nice to have it in superflore/master before we do.

[allenh1]

Hi @allenh1 is there anything blocking this PR?

Nope, just my negligence. :)

I'll review the open ones as soon as I can.

@herb-kuta-lge one small change and this is ready.

[herb-kuta-lge]

one small change and this is ready.

Done.