Develop api to create certificate

[krishnakr6]

Create api - /certificates with POST method . Which accepts Certificate data and creates certificate using sunbird rc

Note: Follow the development principles of vishwaas.

[krishnakr6]

@Pavan-tibil @Snegha-M @TaherKing Add the respective comments and PR links. Also mention the framework which you have used.

[Snegha-M]

Created endpoint as api/v1/Certificates checking whether the certificate already exists or not using get entity API if certificate already exists returning message as certificate exists or else creating new certificate using create entity API PR link: https://github.com/Tibil-vishwAAs/Vishwaas/pull/6

Framework: Flask

[Pavan-tibil]

Created API end point /certificates and change the strings to constants where ever required. PR link : [https://github.com/Tibil-vishwAAs/Vishwaas/pull/7]()

Framework used - Django-REST-Framework(4.0.3)

[Pavan-tibil]

need to add comments to every functions and need to create one class to handle the response code. Will work on it and complete it by tomorrow.

[TaherMakandar]

Created endpoint as api/v1/Certificates checking whether the certificate already exists or not using RC get entity API if certificate already exists returning message as certificate exists or else creating new certificate using RC create entity API and give certificate created response. PR link : https://github.com/Tibil-vishwAAs/Vishwaas/pull/12 Framework : Spring Boot

[Pavan-tibil]

commented for all the functions and classes and created a class to handle the responses. And completed all the chnages mentioned in issues. PR link - [https://github.com/Tibil-vishwAAs/Vishwaas/pull/7]()

[TaherMakandar]

Added .gitIgnore file and removed unused lines and files https://github.com/Tibil-vishwAAs/Vishwaas/pull/12

[TaherMakandar]

Removed application file https://github.com/Tibil-vishwAAs/Vishwaas/pull/12