Move /socket.io/ under parent URI path

[CharlieC3]

The current socket.io path being used is /socket.io/. It should be moved under a different path to avoid domain conflicts when hosting multiple Hiro APIs under a single domain. (e.g. api.hiro.so/extended/v1/socket.io/)

[smcclellan]

Prerequisite task is to check current usage of this endpoint before renaming, to ensure no breaking impact.