cassandra: Adds json struct tags to fix cassandra annotations
cassandra: Adds json struct tags to fix cassandra annotations

x ClusterSpec
x RackSpec

The lack of the json tag required manifests to use 'Annotations' rather than 'annotations' to propogate annotations to the stateful set pods. This change will allow the software to function as documented.

Closes: https://github.com/rook/rook/issues/5097
Signed-off-by: Ryan Thompson <ea3cd978650417470535f3a4725b6b5042a6ab59@zengyant.com>

rook/rook,rook/rook,rook/nfs,rook/rook,rook/rook,rook/nfs,rook/rook,rook/nfs