Move auth functions to auth.ts

[campionfellin]

Including:
REDIRECT_URI_OOB
oauth2Client
getAPICredentials
authorizeWithLocalHost
authorizeWithoutLocalHost

Note: I am exporting LOG from index.ts just until we move it to /src/commands.ts

Also, though the tsconfig.json file still has this:

  "files": [
    "index.ts",
    "tests/test.ts",
    "src/utils.ts"
  ]

It still compiles /src/auth.ts into /src/auth.js. Might be worth looking into.

Signed-off-by: campionfellin campionfellin@gmail.com

Works on #134

• npm run test succeeds.
• npm run lint succeeds.
• Appropriate changes to README are included in PR.

[campionfellin]

See note above: this is just temporary

[campionfellin]

See note, this is just temporary until we make /src/commands.ts

[coveralls]

Pull Request Test Coverage Report for Build 136

• 0 of 0 (NaN%) changed or added relevant lines in 0 files are covered.
• 255 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.6%) to 12.068%

---

Files with Coverage Reduction	New Missed Lines	%
index.js	255	6.47%

Totals
Change from base Build 135:	0.6%
Covered Lines:	130
Relevant Lines:	801

---

💛 - Coveralls

[grant]

Thanks for the detailed comments. LGTM.