ros-noetic driver for serow + small changes

Added a ros driver for serow (single node) subs to topics and calls the serow filter. Publishes the base state under /serow/base_estimate
added the remapper for the valk .bag that corrects the frames (.bag is to large to push)
added valk json (non tuned)
Removed redundant if (ft.has_value) from serow.cpp (if it doesn't the function returns at the the start)
Added check for correct frames in the wrench measurement
added vs code, devel and build folders to gitignore
split ros1 and ros2 into two workspaces: ros_ws and ros2_ws

mrsp / serow