Adding pylint configuration files.

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint erros in LUNperVDI.py
Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint errors in drivers/RawHBASR.py

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint issues in drivers/blktap2.py
Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint issues in drivers/lcache.py
Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint issues with drivers/mpathcount.py
Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint issues with drivers/scsiutil.py

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>
Fix pylint issues with drivers/srmetadata.py

Signed-off-by: Siddharth Vinothkumar <siddharth.vinothkumar@citrix.com>