Feature Request: Add NO_DAEMON_START count metric

[SgtPooki]

We have DAEMON_START metric which shows duration and count of times we need to start up our own daemon. However, we do not have a metric to show how often there are users who are already running an ipfs daemon.

The webui is available when running the go implementation of IPFS, so if we see a lower count for this NO_DAEMON_START metric, then we could potentially redirect any users who are already running a daemon to the webui.

[SgtPooki]

related to https://github.com/ipfs/ipfs-gui/issues/117