BIGTREETECH Relay 1.2: Change Timeout and enable turning on by pin

For some applications (like when you want to connect the BIGTREETECH E3EZ* ) you might want to increase the timeout for the shutdown of the BIGTREETECH Relay 1.2* . Especially in the case of the E3EZ the issue is that the power of the PSU is also the power for the Onboard CPU (e.g. CB1* or CM4). So when this power cuts too fast, the PSU would be switched off before the CPU has shutdown. Lastly you might want to be able to start the relay through the pins (and not just shut it down) instead of resetting the device. ...