Renamed static fields to comply with coding conventions.

Signed-off-by: Alena Prokharchyk <alena.prokharchyk@citrix.com>
Added version info to command and response parameters introduced in 4.4. Renamed newly introduced parameter StoragePoolReponse.overProvisionFactor to comply with coding conventions.

Signed-off-by: Alena Prokharchyk <alena.prokharchyk@citrix.com>