Support metadata bulk insertion and deletion for a list of entities (switch, interface, link)

[viniarck]

This is for adding a bulk insertion and deletion given a list of items of a certain entity (switch, interface or link), currently we have individual insertions and deletions:

/api/kytos/topology/v3/switches/{dpid}/metadata
/api/kytos/topology/v3/links/{link_id}/metadata
/api/kytos/topology/v3/interfaces/{interface_id}/metadata

New endpoints supporting a post or deletion should operate in a bulk manner, passing a list of entities items id of the same type (switches, interface, link) the operation should be transaction like, all or nothing:

/api/kytos/topology/v3/switches/metadata
/api/kytos/topology/v3/links/metadata
/api/kytos/topology/v3/interfaces/metadata