TST/DOC: test pyarrow tz data + doc / enable cross compat tests for pyarrow/fastparquet
Commits:

TST: add parquet test with tz datetime data for pyarrow
    
+ clean-up basic data types tests: make common dataframe with types
supported by both pyarrow and fastparquet

DOC: document differences between pyarrow and fastparquet in supported data types

TST: enable pyarrow/fastparquet cross compatibility tests on smaller subset of dataframe

Closes https://github.com/pandas-dev/pandas/issues/17448 
Also adds a test for https://github.com/pandas-dev/pandas/issues/18628
