Multimodule support for SonarLint IntelliJ plugin

Hi All,

I did some changes to support multi module (multiple vcs root) setup in intellij similar to eclipse workspace for intellij sonarlint plugin. I would like to get feedback from the community about the approach i have taken and some testing as well.

The soucecode is at

and here is a picture how the new configuration panel looks like

Please let me know if anyone has questions or if anyone needs help on building the plugin.