Add EasyNav, NavMap and PlanSys2 packages

[wolfv]

This carries forward the work from #22 by @fmrico and includes the patch cleanup needed after the rosdistro snapshot refresh.

Included packages

• EasyNav and dependencies
• NavMap and dependencies
• PlanSys2 and dependencies

Patch cleanup

• reduce the sbg_driver patch to the one change not already included in 3.4.0
• reduce the slam_toolbox Windows patch to the remaining /F 40000000 settings; the other fixes are already included in 2.10.0

Validation

• Linux patch check passes for navmap_ros and sbg_driver
• refreshed slam_toolbox patch applies against 2.10.0
• direct git apply --check passes for both refreshed patches

Supersedes #22 so maintainers can merge the cleaned-up branch directly.

[wolfv]

I think we can merge this but it does update a few more packages because the snapshot update is bigger ... wdyt @Tobias-Fischer ?