Pyvelox sphinx documentation (#3363)

Summary:
This is the initial PR to integrate PyVelox documentation.

X-link: https://github.com/facebookincubator/velox/pull/3363

Reviewed By: Yuhta

Differential Revision: D43483032

Pulled By: kgpai

fbshipit-source-id: f632974161b0c71c461415d239b1fa3726bb8299

build/fbcode_builder/getdeps.py

@@ -31,7 +31,6 @@ from getdeps.platform import HostType
 from getdeps.runcmd import run_cmd
 from getdeps.subcmd import add_subcommands, cmd, SubCmd
 
-
 try:
     import getdeps.facebook  # noqa: F401
 except ImportError:

build/fbcode_builder/getdeps/manifest.py

@@ -33,7 +33,6 @@ from .fetcher import (
 )
 from .py_wheel_builder import PythonWheelBuilder
 
-
 REQUIRED = "REQUIRED"
 OPTIONAL = "OPTIONAL"
 

build/fbcode_builder/getdeps/platform.py

@@ -4,6 +4,7 @@
 # LICENSE file in the root directory of this source tree.
 
 import os
+
 import platform
 import re
 import shlex