definition of the HostClaim resource

The HostClaim resource is introduced to address multi-tenancy in
Metal3.

Introduces four scenarios representing the three main use cases and
how pivot is made.

The role of HardwareData and the new HostDeployPolicy resource for
binding HostClaims is described.

Co-authored-by: Pierre Crégut <pierre.cregut@orange.com>
Co-authored-by: Laurent Roussarie <laurent.roussarie@orange.com>
Signed-off-by: Pierre Crégut <pierre.cregut@orange.com>

Author: pierrecregut

.cspell-config.json

@@ -37,6 +37,7 @@
     "BMO",
     "bootable",
     "BR",
+    "BYOH",
     "CABPK",
     "CAPBM",
     "CAPI",
@@ -112,7 +113,9 @@
     "iso",
     "Jern",
     "js",
+    "k0smotron",
     "k8s",
+    "Kamaji",
     "Kashif",
     "keepalived",
     "Kind",