Change relay pulse time while active

[mcspr]

Changing pulse time from Web does not reset currently running timer i.e. using Normally off / 60s:
Turn on -> Change time to 10s -> ... wait 60 seconds... -> relay turns off
It works afterwards ofc:
Turn on -> ... wait 10 seconds ... -> relay turns off

Also, because _relayConfigure is only called by websockets code, there is no way to set relayTimeN using terminal commands besides rebooting device.

[xoseperez]

I have changed the way the Ticker works. TBH I'm not 100% sure it's a good idea (more processing load) but it works and does what you want. Also, I have added a reload command to the terminal that forces the modules to re-read the configuration from the settings.

Staged for release.

[mcspr]

Maybe keep the ticker? And supercede this by #831 for timed on / off state.

I did entertain the idea of detaching the ticker completely if either mode or time changes and, like this approach, reattach ticker starting from current time. It does exactly what issue says, but makes relay logic slightly tangled :/ Timed on / off will keep the logic that pulse only changes when state does, and is with added benefit of dynamic pulse timer.