Make client be able to accept both ws and wss connections at runtime

Currently the C++ client has two versions deployed in different images:

1. Server + NoSSL client: used to deploy the server side and use NoSSL client (accepts only ws connections)
2. ssl-client: to use ssl client version (accepts wss connections)

With this proposal we will be able to use the same client and accept both NoSSL and SSL server connections (ws and wss).

Also with that we will be able to discard the dedicated ssl-client image, and use only one image.