Adding ready plugin

Signed-off-by: codewithpassion <dominik.fretz@gmail.com>

Fixing ready plugin to flash the rov lights when we start
Implementing UI elements for depth and heading hold
Imporve apperence of indicators
Adding laser indicator
Fixing heading hold disable
Improving the disabled state for Depth and heading hold and adding an image to the laser indicator
cleanup hold indicators
Adding thrust factor to yaw correction according to walt
Fixing build problem of Arduino code
Fix spelling in Arduino
Fix spelling in Arduino 2
Merge branch 'master' into feature/ui-feedback-for-depth-and-heading-hold-and-laser
Merge pull request #240 from codewithpassion/feature/ready-plugin

Creating a plugin that flashes the lights when cockpit started
Merge pull request #243 from codewithpassion/feature/use-thrust-factor-for-yaw

Adding thrust factor to yaw correction according to Walt
Fixed #239; Constrain motor signals to allowed range

Tested on hardware.
Merge branch 'bug-239'
Fixed#234; swapped pitch/roll in MPU9150
Merge branch 'bug/234'
Fixed #175; Solved some crashes from the firmware uploads

Tested on real hardware for 8 or so uploads. Needs to be monitored.
Merge branch 'bug/175'