renamed all xsd files from v2_0_0 to v2_2_0

v2_2_0/CDT-deviceInfo-v2_2_0.xsd

v2_2_0/CDT-enumerationTypes-v2_2_0.xsd

v2_2_0/CDT-eventConfig-v2_2_0.xsd

v2_2_0/CDT-eventLog-v2_2_0.xsd

v2_2_0/CDT-execInstance-v2_2_0.xsd

v2_2_0/CDT-firmware-v2_2_0.xsd

v2_2_0/CDT-group-v2_2_0.xsd

v2_2_0/CDT-locationPolicy-v2_2_0.xsd

v2_2_0/CDT-m2mServiceSubscriptionProfile-v2_2_0.xsd

v2_2_0/CDT-memory-v2_2_0.xsd

v2_2_0/CDT-mgmtCmd-v2_2_0.xsd

v2_2_0/CDT-node-v2_2_0.xsd

v2_2_0/CDT-notification-v2_2_0.xsd

v2_2_0/CDT-pollingChannel-v2_2_0.xsd

v2_2_0/CDT-reboot-v2_2_0.xsd

v2_2_0/CDT-remoteCSE-v2_2_0.xsd

v2_2_0/CDT-request-v2_2_0.xsd

v2_2_0/CDT-requestPrimitive-v2_2_0.xsd

v2_2_0/CDT-responsePrimitive-v2_2_0.xsd

v2_2_0/CDT-schedule-v2_2_0.xsd