CA-103800: Moving to use git to describe the version number of the component. This is based both on tag, commits and current HEAD checksum.

Signed-off-by: Rob Dobson <rob@rdobson.co.uk>
Merge pull request #24 from rdobson/ca-103800

CA-103800: Moving to use git to describe the version number of the compo...
CA-103800: Moving to use git to describe the version number of the component. This is based both on tag, commits and current HEAD checksum.

Signed-off-by: Rob Dobson <rob@rdobson.co.uk>