Add MapChart widget

Using TopoJSON [1].

The chart component is build around a convention suggested by d3 author
Mike Bostok [2].

[1] https://github.com/mbostock/topojson
[2] http://bost.ocks.org/mike/chart/

Change-Id: I2b8aefae338f9b24b71d0f2c679993e26dabd6cf
9 files changed
tree: c23b1c62441c330c4429110e4679825452f2911f
  1. .gitignore
  2. bundles/
  3. component.xml
  4. examples/
  5. pom.xml
  6. releng/
  7. tests/