Redesign the landing page in Jio-dashboard

Dashboard re-skinned as per templates shared by http://saffron-st.com/jiocloud_login/#
Left Navigation pane and the Header area re-designed as per templates shared.
Make content available as per each specific links on left nav bar
project bar drop down box is integrated with the header bar

Things yet to be fixed:
1.Css styling as per master branch  UI
2.urls to be mapped for each left nav bar hyperlink

Files changed
* horizon/templates/horizon/common/_sidebar.html
    +Integrated new sidebar with master branch sidebar
* openstack_dashboard/static/dashboard/scss/horizon.scss
    +Added new jio logo path
* openstack_dashboard/templates/_header.html
    +Added new header bar
* openstack_dashboard/static/jio_cloud/
    +New media files
* horizon_jiocloud/jio_cloud/
    +Added new jio_cloud module to load view

Implements: blueprint redesign-jio-dashboard-landing-page