SWF Viewer - Drop of SVG shapes. Improve UX for hover/selection states.

Goal #1

Drop the internal use of SVG shapes (view) generation, and replace the shapes for the whole SWF domain by custom lienzo implementations.

• Remove org.kie.kogito.stunner.serverless.editor:kie-wb-common-stunner-svg-client module
• Remove org.kie.kogito.stunner.serverless.editor:kie-wb-common-stunner-svg-gen module
• Remove SVG shapes and replace it with custom lienzo implementation
• Remove Decorators from Shapes
• Activate HIGHLIGHTED mode for shapes from stunner shape state handlers

Goal #2

Currently two node selection states are supported:

• Default (not selected)
• Selected (user selection)

The goal of this task is to implement the "Hover" state using the design proposal from UX:

 UX Proposal

This way nodes will support three selection states as depicted below:

• Default (not selected)
• Selected  (user selection)
• Hover (mouse pointer over the state area)

Expected behaviour:

• Module org.kie.kogito.stunner.serverless.editor:kie-wb-common-stunner-svg-client removed
• Module org.kie.kogito.stunner.serverless.editor:kie-wb-common-stunner-svg-gen removed
• Visually shapes and transitions should be changed in a way:
  • Default: #FFFFFF fill with #CCCCCC outline
  • Hover: #FFFFFF fill with #4F5255 outline
  • Selected: #E7F1FA fill with #0066CC outline with shadow
• On mouse over the borders are highlighted
• On selection node is moved to selected state and over is not applying anymore