Feat add multi tenancy

[khevin2]

What does this PR do?

• Introduces multitencancy
• Add Tenants table
• Upgrade swagger from v2 to v3

Description of Task to be completed?

• Add Tenants functionalities
• Need to be introduced in all routes

Requirements

• Require dependencies installation
• Require .env update
• Documentation updated

How should this be manually tested?

• Clone this repository
• checkout to this branch feat-add-multi-tenancy
• install the dependencies npm install and
• Run migrations npm run db:migrate
• Create some users or run seeds npm run db:seed and then start the server npm run dev
• Go to http://test.lvh.me:$PORT/api/v1/docs in your browser to access the API documentation

Any background context you want to provide?

What are the relevant pivotal tracker stories?

Screenshots (if appropriate)

Questions:

• N/A