Introduce libjalien packages
Classes, that are not directly related to ALICE's TGrid implementation, were moved to the separate packages. One is responsible for handling websocket connections; the other package contains authentication aspects like credentials and CA's managing.
Related repositories:
https://gitlab.cern.ch/vyurchen/libjalienO2
https://gitlab.cern.ch/vyurchen/libjalienws
https://gitlab.cern.ch/vyurchen/alidist/-/tree/feature-libjalien