Add a common rendering package to the library

[almaslennikov]

Operators and related projects use scaffolding around go templates to render the k8s manifests in runtime. Let's extract this functionality into the library and use it instead of copy-paste solutions.

Examples:
https://github.com/Mellanox/network-operator/tree/master/pkg/render
https://github.com/k8snetworkplumbingwg/sriov-network-operator/tree/master/pkg/render
https://github.com/almaslennikov/nic-configuration-operator/tree/daemon-deployment/pkg/render
https://github.com/NVIDIA/gpu-operator/tree/main/internal/render