Allow device removal

[jbouwh]

Allows removal of and Elro Connects device through the HA GUI if the device is no longer provisioned trough the connector,

[jbouwh]

Coverage Report

File	Stmts	Miss	Cover
custom_components
init.py	0	0	100%
custom_components/elro_connects
init.py	69	0	100%
config_flow.py	92	0	100%
const.py	4	0	100%
device.py	72	0	100%
sensor.py	40	0	100%
siren.py	46	0	100%
TOTAL	323	0	100%

Tests	Skipped	Failures	Errors	Time
21	0 💤	0 ❌	0 🔥	2.442s ⏱️

[jbouwh]

Coverage Report

File	Stmts	Miss	Cover
custom_components
init.py	0	0	100%
custom_components/elro_connects
init.py	69	0	100%
config_flow.py	92	0	100%
const.py	4	0	100%
device.py	72	0	100%
sensor.py	40	0	100%
siren.py	46	0	100%
TOTAL	323	0	100%

Tests	Skipped	Failures	Errors	Time
21	0 💤	0 ❌	0 🔥	1.990s ⏱️