enabled signup option

formated success email
modified signup UI
Show RAM used in GB or higher format

In dashboard overview page, Show RAM used in GB or higher format
jio log not loading in dashboard

Fixed the path of the logo
Updated horizon_jiocloud/README.rst
dashboard: round the value of total RAM usage

round the value of total RAM usage in dashboard overview panel
Tenant name should be visible in the dashboard
Bug : 1287742
New design for signup page

Commented UI and backend codes which were using for old signup
Removed last name field from signup page
redesigned signup page

removed couple of fields from signup page
Commented python codes which were handling removed fields,
will uncomment later
added js validation in signup page

added js validation for email and phonenumber