Implement Interactive Strategies for SCCharts

This task includes the following steps:

[x] Make the current implementation independent of layout direction
[x] Use existing features to get an upper bound for the size of a node, (port, etc might add something to this) to set an order on the nodes
[x] Implement interactive strategies for the BoxLayouter and other layout strategies if necessary (done for rectpacking)
[x] Recognize the different types of nodes (node for regions, etc) to use different user interactions (done by algorithm)
[ ] Check what to do which very big Diagrams
[ ] Do not place nodes in an edge layer
[ ] FInd a way to set the property in the SCCharts resource
[x] Find a way to use LayerConstraint and LayerChoiceConstraint at the same time.
[x] Move interactive layer/position calculation and setting into elk layered (from klighd.lsp)
[x] Configure ELK to run layout twice with different settings
[ ] Implement ILayoutConfigurationStore for SCCharts to store property values

kieler / klighd-vscode