In the past API was exposed via HTTP Server only when jsipfs daemon was run
from the commandline, so src/http/index.js was also responsible for
orchestration that is not related to HTTP itself.

This refactor moves code that is not related to HTTP Servers into
standalone-daemon.js, which is easier to reason about, and unlocks use
of HttpApi in contexts other than commandline jsipfs daemon,
such as Firefox with libdweb or Chromium-based web browser with chrome.sockets APIs.

Refs.
ipfs/ipfs-companion#664

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

This changes behavior in web browser. Instead of printing to
console.log, it uses proper debug-based logger.

Old behavior in terminal (when run via `jsipfs daemon`) does not change.

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

This replaces durect use of HttpApi with StandaloneDaemon, restoring all
existing tests to operational state.

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>