Inconcistant API layout of NB APIs

There are some issues that are concerning when looking at the NB APIs.

A collection endpoint is /

{containerName}/subnet/all vs /{containerName}

/nodes

also there's a difference in the usage of POST vs PUT for creation of new objects.
POST /controller/nb/v2/staticroute/

{containerName}/route/{route}
PUT /controller/nb/v2/flow/{containerName}

/node/

{nodeType}

/

{nodeId}

/static-flow/

{name}