[manila] add scheduler_hints field to manila shares #3204
Description
https://docs.openstack.org/api-ref/shared-file-system/#create-share
Scheduler hints allow to create shares with affinity and anti-affinity rules, e.g.:
{
"share": {
...
"scheduler_hints": {
"same_host": "d9c66489-cf02-4156-b0f2-527f3211b243,4ffee55f-ba98-42d2-a8ce-e7cecb169182",
"different_host": "903685eb-f242-4105-903d-4bef2db94be4"
}
}
}