Added images for delete stemcell and create vm
Modified the initialize diagram and added text documentation
Added diagram for create_disk
Added content for Delete Disk implementation
Modified Create stemcell use case
Modified diagram for create stemcell
Added Nova Components
Minor modifications
Minor modifications
Merge branch 'master' of https://github.com/rajdeepd/openstack-bosh-cpi
Merge pull request #23 from rajdeepd/master

Added detailed Diagrams and steps for CPI implementation