Add table github_organization_member Closes #176

[karanpopat]

Example query results

Results

> select
  organization,
  login,
  role,
  state
from
  github_organization_member
where
  organization = 'new-testing-org';
+-----------------+--------------+--------+--------+
| organization    | login        | role   | state  |
+-----------------+--------------+--------+--------+
| new-testing-org | rajlearner17 | admin  | active |
| new-testing-org | vkumbha      | member | active |
| new-testing-org | ParthaI      | member | active |
| new-testing-org | karanpopat   | admin  | active |
+-----------------+--------------+--------+--------+

> select
  organization,
  login,
  role,
  state
from
  github_organization_member
where
  organization = 'new-testing-org'
  and role = 'admin'
  and state = 'active';

+-----------------+--------------+-------+--------+
| organization    | login        | role  | state  |
+-----------------+--------------+-------+--------+
| new-testing-org | rajlearner17 | admin | active |
| new-testing-org | karanpopat   | admin | active |
+-----------------+--------------+-------+--------+

[LalitLab]

@karanpopat left few comments