Bump the API version

Signed-off-by: John Else <john.else@citrix.com>
Add lifecycle field to GPU_group.allocation_algorithm parameter

Signed-off-by: John Else <john.else@citrix.com>
Add datamodel version for vGPU productisation

Signed-off-by: John Else <john.else@citrix.com>
CP-6257: Convert a couple of getter methods to fields

GPU_group.supported_VGPU_types and GPU_group.enabled_VGPU_types are now
fields, rather than values computed on demand.

Signed-off-by: John Else <john.else@citrix.com>
CP-6257: These fields are no longer expensive

Signed-off-by: John Else <john.else@citrix.com>
CP-6257: Update group's enabled VGPU types after changing them on a PGPU

Signed-off-by: John Else <john.else@citrix.com>