first sketch of map_to_image and multi_view
Implemented navigation state. Not tested yet
Implemented failures but not excessively tested
Merge branch 'breaking_point' into groovy_dev

Conflicts:
	README.md
Move that keeping track part into the spwan launchfile
Launch top camera in nav_skeleton
Include spawn camera in navigation.launch
Record /top_camera/image_raw
Move Copy Handlers into navigation_test

They will be used by the upcoming video publisher as well
Dont wait for topics to become available
Rewrite dependencies in manifest
Plot the app chart even if one single data point available
Make the last n filter global
Expand user home
Make navigation_test_analysis a daemon
Add Todo: Pass array of bumper topics to collion detection
Make error msg optional
Need to import subprocess
Initial video recorder node
Automatically record video when analysing bag file