Web DV Client SDK

[javiesses]

Closes #3

• Deleted old version
• Get content
• Create content
• Login process
• Tests for every written method
• Fixed typeorm version across the entire repo
• README brief
• Swap content
• Delete content
• Refresh access token when necessary
• Login again when refresh token is expired
• Refactor internal methods

Open work:

• Perform bulk CRUD operations - Allow to perform bulk CRUD operations from the client #13
• Encryption box implementation - DV Client should encrypt/decrypt data prior sending it to the service #14

[lgtm-com]

This pull request introduces 1 alert when merging 4231f32 into 90fbf8e - view on LGTM.com

new alerts:

• 1 for Ineffective parameter type

[ilanolkies]

First of all,

Overrides to perform operation with multiple values (get content from multiple keys for instance)

do we want to do this or use different method names?

[ilanolkies]

Some minor changes we talked about:

• Activate test:ci script to enable Circle CI before merging
• DID Auth token management is white box. That lead into two conclusions: analyse wether we need to test this or not, and remove access token related methods from client interface.

[ilanolkies]

Fantastic work!

[ilanolkies]

I would move all this section directly to docs. It is very big for a readme.

Suggested change

	## Usage
	## Usage
	[Read the docs](https://rsksmart.github.io/rif-identity-docs/data-vault/cpinner/cpinner-client)

I will then review and iterate docs over that PR

[ilanolkies]

I missed the option. I now put request changes for stuff described above.

[ilanolkies]

Fantastic