New highlight axial coding model command and handler
whatever?!
Moved core functionality from View to Composite
TODO: Save before disposing
[UI] High importance codes can be better read in ACM view
[UI] Update ACM labels on load

This is relevant if a code's name has changed
[FIX] NPE
[FEATURE] ACMView can no show multiple ACMs
[FEATURE] Option to load all ACMs in which the selected Code is used
[FIX] ConcurrentModificationException in CodeService
[FIX] Only Is-A-Links between codes are generated that are actually part of the axial coding model in question
[LOG] Added log4.xml to GT plugin
[FIX] ACM can now be highlighted
[TODO] Nodes within an ACM can not yet be highlighted using LocatorService.showInWorkspace since this method's implementation currently only allows to load objects the plugin is responsible for (which is only the case for ACMs but not for Codes within an ACM)
[FIX] The ACM list no more shows n times the existing models.

Before an event was triggered n time where n is the number of previously opened ACMs.
[UI] Instances in the CDViewer can now be dragged
[FIX] Clicking on some element in JointJS that has no corresponding value object no more leads to an NPE
Revert "[FIX] Clicking on some element in JointJS that has no corresponding value object no more leads to an NPE"

This reverts commit 667008c10cdb0e46f3b0540b787686f61b0978e3.
[FIX] Added back drop support for ACM Composite
[FIX] Dimension / Properties now behave correctly if they encounter deprecated codes
[FIX] CodeService.getSubCodes now correctly return all descendants
[FEATURE] Dropping codes on existing codes in the ACM will replace them.
[FEATURE] Deprecated codes are no longer automatically removed but stay in place.