Create a initial Window if the Database isn't initialised

and add the possiblity for navigation.
Remove navigation from MainWindow fully
Extracted the bootstrap logic from the mainclass and add a setupfunction
Minor: Rename and change message
Fine configuration of the MapPanel
Add a defaultLandregister to the demousers
Move the LandRegisterView to a subpackage
Add german description to PlotUsage and override the toString methode
Add delegated getters for corridor, district and cadastralbook to plot

 On the View we only have the plot and it is easier this way than building trainwrecklines there
Implement the InventoryListing
Add a getter for the entries of a LandRegisterPage
Add the Tabelmodel for the differnt sections
Merge branch 'logic' into demoData