Create documentation: Plotting with plotlab

[daniel-gitgit]

https://github.com/eclipse/adore/blob/dev_v0.3.2_doc/documentation/technical_documentation/system_and_development/plotting_plotlab.md

• Create general documentation in submodule and link
• Operation of user interface
• Exporting
• Dont integrate plotting into control nodes
• Views used in ADORe, available plotting nodes