Barchart add-on for plotter gui-plugin

The plotter now has a dropdown menu to change the visualization style from curves to bars. 
The bars are dynamically scaled and added and receive the data in the same time as the curves.
The colors of bars and curves match.
Adding more styles in the future is easily possible due to stacked layout and singular distribution of data.

See merge request !3

Barchart branch needs to be non fast forward to push

Variants: remove readFromXML()/writeAsXML() methods according to ArmarXCore changes

The following changes are adjustments required after merging ArmarX/ArmarXCore!5

See merge request !2

Colored Point Cloud for Debug Drawer

added functions for colored point clouds in the DebugDrawer. Assigned color and size for each point in the cloud.

See merge request !1

Conflicts:
	source/RobotAPI/components/DebugDrawer/DebugDrawerComponent.cpp
	source/RobotAPI/components/DebugDrawer/DebugDrawerComponent.h