BigQuery Compatible Table Creations

[kevinjyee]

Changed data types for Google BigQuery compatibility in Google's Standard SQL.
VARCHAR, INT, FLOAT datatypes are not supported in BigQuery.

See: #168

[t-abdul-basser]

@kevinjyee Thanks.

[kevinjyee]

@t-abdul-basser , it also seems like BigQuery only allows you to only create one table at a time using their web browser interface.
However, you can create all the schemas at once using their API. Would a contribution of that be helpful?

[t-abdul-basser]

@kevinjyee Yes, that would be quite helpful.