Add basic functionality for ETHELIA.io service
Initial concept of ETHELIA.io (ex PHEIX.io) service was to provide services for data storing on public or private PoA ethereum networks.
For now I suggest to define ETHELIA.io as Ethereum blockchain storage provider for different kinds of events.
The service will based on the next options:
✅Pheix instance with decentralized authentication enabled;
✅Event endpoint : also Pheix API-only instance with catch contract feature.
To store event we need additional
Pheix::Controller::API::Endpoint::Events module: #126 (comment 840185262)