Websockets protocol

[roxblnfk]

Added support for websockets.
Any WS connection will receive a timer messages.

Note: It doesn't support any compression extensions and chunked transactions.

An experimental Web UI, similar to the one in Buggregator Server, has been introduced.
You can launch it by adding the --ui flag when starting the Trap server.
In this case, events will be sent simultaneously to the console and to the open websocket connections of browser interfaces.

flowchart TB
    Sentry & SMTP & VarDump & Monolog --> P([Port 9912])
    HTTP(Any HTTP) --> P
    subgraph Trap Server
        P --> TI(Traffic\nInspector)
        TI -->|Raw traffic| DIS(Dispatchers\nwith parsers)
        DIS ---->|Events| Senders
        subgraph Senders
            subgraph SendT [Console]
                Renderer
            end
            subgraph SendF [Filesystem]
                Writer
            end
            subgraph SendW [Frontend]
                EvMap(Events mapper) --> Collector
                Collector(Collector) <--> CP(Connection pool\nPort 8000)
            end
        end
    end
    CP <-->|Websocket\nand HTTP| WebUI
    Renderer --> Terminal
    Writer --> Files

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Closes #21