Creating the Android styleguide

Description and Impact
----------------------
> What impact does this change have for production?

Deploy Plan
-----------
> Does Infrastructure need to know anything special about this deploy?

Rollback Plan
-------------
* To roll back this change, revert the merge with: `git revert -m 1 MERGE_SHA` and perform another deploy.

URLs
----
> Links to bug tickets or user stories.
* [Jira issue MOBILE-963](https://sportngin.atlassian.net/browse/MOBILE-963)

QA Plan
-------
> Fill in scenarios below. Review [QA Best Practices](https://source.sportngin.com/page/show/1227795-qa-best-practices).

#### Happy Path Scenarios
* Happy Path scenario 1
* Happy Path scenario 2

#### Additional Scenarios (Edge Case, Negative, etc.)
* Edge case scenario 1
* Edge case scenario 2

#### Regression Scenarios
* Regression item on related feature 1
* Regression item on related feature 2