BUG: read_parquet no longer supports file-like objects

#### Code Sample, a copy-pastable example

```python
from io import BytesIO
import pandas as pd

buffer = BytesIO()

df = pd.DataFrame([1,2,3], columns=["a"])
df.to_parquet(buffer)

df2 = pd.read_parquet(buffer)
```

#### Problem description

The current behavior of `read_parquet(buffer)` is that it raises the following exception:
```
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "./working_dir/tvenv/lib/python3.7/site-packages/pandas/io/parquet.py", line 315, in read_parquet
    return impl.read(path, columns=columns, **kwargs)
  File "./working_dir/tvenv/lib/python3.7/site-packages/pandas/io/parquet.py", line 131, in read
    path, filesystem=get_fs_for_path(path), **kwargs
  File "./working_dir/tvenv/lib/python3.7/site-packages/pyarrow/parquet.py", line 1162, in __init__
    self.paths = _parse_uri(path_or_paths)
  File "./working_dir/tvenv/lib/python3.7/site-packages/pyarrow/parquet.py", line 47, in _parse_uri
    path = _stringify_path(path)
  File "./working_dir/tvenv/lib/python3.7/site-packages/pyarrow/util.py", line 67, in _stringify_path
    raise TypeError("not a path-like object")
TypeError: not a path-like object
```

#### Expected Output

Instead, `read_parquet(buffer)` should return a new DataFrame with the same contents as the serialized DataFrame stored in `buffer`

#### Output of ``pd.show_versions()``

<details>

INSTALLED VERSIONS
------------------
commit           : None
python           : 3.7.5.final.0
python-bits      : 64
OS               : Linux
OS-release       : 4.15.0-99-generic
machine          : x86_64
processor        : x86_64
byteorder        : little
LC_ALL           : None
LANG             : en_US.UTF-8
LOCALE           : en_US.UTF-8

pandas           : 1.0.4
numpy            : 1.18.4
pytz             : 2020.1
dateutil         : 2.8.1
pip              : 9.0.1
setuptools       : 39.0.1
Cython           : None
pytest           : None
hypothesis       : None
sphinx           : None
blosc            : None
feather          : None
xlsxwriter       : None
lxml.etree       : None
html5lib         : 0.999999999
pymysql          : None
psycopg2         : None
jinja2           : None
IPython          : None
pandas_datareader: None
bs4              : None
bottleneck       : None
fastparquet      : None
gcsfs            : None
lxml.etree       : None
matplotlib       : None
numexpr          : None
odfpy            : None
openpyxl         : None
pandas_gbq       : None
pyarrow          : 0.17.1
pytables         : None
pytest           : None
pyxlsb           : None
s3fs             : None
scipy            : None
sqlalchemy       : None
tables           : None
tabulate         : None
xarray           : None
xlrd             : None
xlwt             : None
xlsxwriter       : None
numba            : None

</details>
