RadViz inclusion

Changes:

• Re-structuring of files and adding documentation.
• Adding RadViz approach

Initial Release

Initial Release of the Radial Visualization Gadgets package using shiny.

Supports

• Traditional Star Coordinates
• Orthographic Star Coordinates
• Axis Calibrated Star Coordinates
• Mixed Data Representation in Star Coordinates
• Hints for Dimensional Vector Movement
• Labeled data analysis

Features to be added

• Shape Preserving Star Coordinates
• Panning
• RadVis
• Complex Initialization Functions for Projection Matrices
• Categorical Hints