Define types and interfaces for taskComponent declaration

[plc-dev]

Define types and interfaces for taskComponent declaration.

Defined taskComponents:

• DOTGraph
• ManipulatableGraph
• BackgroundGraph
• CodeEditor
• ContourPlot
• DifficultyPicker
• DropDown
• GraphTraversal
• Output
• Equation
• PathDisplay
• ParameterSelection
• TaskConfiguration
• VIsualGraphTraversal
• ControlObject
• DijkstraTable
• Matrix
• MatrixField
• GanttDiagram