OPENVX_USE_USER_DATA_OBJECT cant be set from Build.py

[balaji-ch]

Build.py does not have the option of enabling the USER DATA OBJECT. Corrected Build.py (remove .txt exension) is attached for your reference. USER DATA OBJECT feature can be enabled using --userdataobj
example:
D:\Codebases\tmp\OpenVX-sample-impl>python Build.py --os=windows --s16 --userdataobj --conf=debug --gen="Visual Studio 14"

Build.py.txt