Clarify device query partition enumerations.

[veselypeta]

Some UR enumerations are perhaps confusingly named and do not return the expected type as to what their name might suggest.

The two queries:

• UR_DEVICE_INFO_PARTITION_PROPERTIES: which is equivalent to CL_DEVICE_PARTITION_PROPERTIES and returns an array of ur_device_partition_type_t which indicates what partition schemes are supported by the device. In OpenCL this returns a cl_device_partition_property[] which is just an array of intptr, but makes sense to call this enum *_PROPERTIES. However in UR we have a specific enum for these values so we should rename this enumeration perhaps to UR_DEVICE_INFO_PARTITION_TYPES
• UR_DEVICE_INFO_PARTITION_TYPE: is a query which returns the partition type of a sub-device. I.e. The properties passed to urDevicePartition as a ur_device_partition_property_t[]. However, this name will now be confusing with the suggestion of renaming of UR_DEVICE_INFO_PARTITION_PROPERTIES. We should rename this enum to disambiguate between the two enumerations.

[veselypeta]

This was completed as part of #536