[scm] OPSAPS-31656 ClusterTemplates: Cardinality needs to be described in the exported template
[scm] OPSAPS-31656 ClusterTemplates: Cardinality needs to be described
in the exported template

Added cardinality attribute to host template in cluster template

(cherry picked from commit 0c8595db3519e94c9a78acaebe176007ccbd3e83)
(cherry picked from commit 5fd588f77b0300c2bc25e6ebf508f66e338d1f22)

cdapio/cm_api,cdapio/cm_api,cdapio/cm_api,cdapio/cm_api