#162633744 create social login controller and route

[KvNGCzA]

What does this PR do?

have the api/v1/auth/social route working

Description of Task to be completed?

• create social login route
• create create social login controller
• create social login validation
• add test for social login
• add article image to articles model and migration

How should this be manually tested?

• start the server
• send the following information via a post request

{
	"fullName": "full name",
	"email": "email@email.com",
	"socialType": "twitter",
	"socialId": "79364981278217401",
	"avatarUrl": "https://yourimagehere.com"
}

Any background context you want to provide?

N/A

What are the relevant pivotal tracker stories?

#162633744

Screenshots (if appropriate)

Questions:

N/A

Link to review app:

[coveralls]

Pull Request Test Coverage Report for Build 910

• 19 of 19 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.5%) to 93.247%

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Totals
Change from base Build 871:	0.5%
Covered Lines:	1087
Relevant Lines:	1127

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💛 - Coveralls