Added endpoints for user, project, achievements models

[rdotjain]

• Added djangorestframework dependency
• Added serializers, endpoints for user, project, achievement models
• Added endpoints for Leads, Co-Leads

[sanchjain]

Great work!!

[Saurav-Shrivastav]

@all-contributors please add @rdotjain for code @all-contributors please add @sanchjain for maintenance

[allcontributors[bot]]

@Saurav-Shrivastav

I could not determine your intention.

Basic usage: @all-contributors please add @someone for code, doc and infra

For other usages see the documentation

[Saurav-Shrivastav]

@all-contributors please add @rdotjain for code

[allcontributors[bot]]

@Saurav-Shrivastav

I've put up a pull request to add @rdotjain! :tada:

[Saurav-Shrivastav]

@all-contributors please add @sanchjain for maintenance

[allcontributors[bot]]

@Saurav-Shrivastav

I've put up a pull request to add @sanchjain! :tada: