Usage of flag for "no command-message" from Tenant API in the HTTP protocol adapter

[sysexcontrol]

As specified in #655 and #654, the HTTP protocol adapter must evaluate this flag if such a "no command-message" was received.

In this case, a request waiting for a command can be responded directly and the command receiver link can be closed. This behaviour has to be explicitly enabled for a tenant - by default the adapter would ignore such a message and continue to wait for commands until the ttd expired.