[kimchi] add new plugin

This plugin gathers kimchi logs and configuration files.

Kimchi is an HTML5-based virtualization-management platform
For more information, please visit:
https://github.com/kimchi-project/kimchi/wiki

Signed-off-by: Christy Perez <christy@linux.vnet.ibm.com>
Signed-off-by: Bryn M. Reeves <bmr@redhat.com>