ENH: write support for google cloud storage 
#### Is your feature request related to a problem?

Pandas can read from google cloud storage directly. I wonder if it's a good idea to support writing data frame to google cloud storage directly.

#### Describe the solution you'd like

pd.to_parquet('gs://some-bucket/mydata.parquet')

#### API breaking implications

unaware 

#### Describe alternatives you've considered

I've been writing custom functions like `write_df_to_gcs(df, gcs_uri, gcs_credentials)`, but I feel the better abstraction is to be inside `pd.to_parquet`, e.g. if to_parquet detects the path is a GCS URL, then write to GCS instead.

