mgr/dashboard: fix NVMeoF API

mgr/dashboard: fix NVMeoF API

* Update NVMe-oF gRPC Proto to 1.0.0
* Error handling,
* Missing PATCH for certain namespace ops (resize, set QoS, set balance
  groups),
* Stop bypassing gRPC payloads and validate those in the back-end,
* Fix incorrect HTTP 1.1 semantics for some POST/DELETE and URIs.
* Catch errors/exceptions.
* Clean-up EndpointDoc Params
* Run Black linter.
* Remove most of NVMeoFClient glue code between gRPC and controller.
* Fix namespace delete endpoint by exposing trsvcid
* nvmeof io_stats support

Fixes: https://tracker.ceph.com/issues/64890
Signed-off-by: Ernesto Puerta <epuertat@redhat.com>