Migrate college-cloud analytics APIs from feedback service to vlabs-analytics-service

[ksripathi]

Currently, All the APIs related to college-cloud analytics are implemented are part of feedback service which are documented and provided below:

API documentation: https://github.com/vlead/feedback-portal/blob/master/src/design/index.org#dump-college-cloud-data-to-elk
Implementation : https://github.com/vlead/feedback-portal/blob/master/src/runtime/rest/api.org#dump-college-details-into-the-elastic-database

Since vlabs-analytics-service is available now and which is centralized service for all types of analytics we can migrate all APIs from feedback service to vlabs-analaytics-service