[openwebnet] adding support for central unit (#12062)

* - read 'standAlone' flag from thing
- send standAlone flag to own4j for setting the temperature on central unit
- own4j 0.7.1 required
* added localmode and central unit thing
* added localOffSet channel to readme.md
* added remoteControl, batteryStatus and modeCentralUnit for bus_thermo_cu
* added weekly and scenarios to modeCentralUnit
* - manual setting of a zone to T temperature (with persistence in central unit)
- manual setting of central unit to T temperature (all zones)
- set the central unit in OFF mode (all zones)
- set central unit in thermal protection (all zones)
- set central unit in antifreeze mode (all zones)
- weekly program activation command (all zones)
- scenario activation command (all zones)
* renamed cu's channels name
* removed unused channel 'modeCentralUnit" from readme
* fix #12298
* - add configuration section (where) for BusThermoCentralUnit
- strings ("OK", "KO", "ENABLED", "DISABLED" converted to constants
- fix typo

Signed-off-by: Conte Andrea <andrea@conte.com>

Co-authored-by: M Valla <12682715+mvalla@users.noreply.github.com>

bundles/org.openhab.binding.openwebnet/src/main/resources/OH-INF/thing/BusThermoCentralUnit.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<thing:thing-descriptions bindingId="openwebnet"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:thing="https://openhab.org/schemas/thing-description/v1.0.0"
+	xsi:schemaLocation="https://openhab.org/schemas/thing-description/v1.0.0 https://openhab.org/schemas/thing-description-1.0.0.xsd">
+
+	<!-- Thing for BUS Thermo Central Unit -->
+	<thing-type id="bus_thermo_cu">
+		<supported-bridge-type-refs>
+			<bridge-type-ref id="bus_gateway"/>
+		</supported-bridge-type-refs>
+
+		<label>Thermo Central Unit</label>
+		<description>A OpenWebNet BUS/SCS configured thermo Central Unit.</description>
+
+		<channels>
+			<!-- read only -->
+			<channel id="remoteControl" typeId="remoteControl"/>
+			<channel id="batteryStatus" typeId="batteryStatus"/>
+			<!-- read/write -->
+			<channel id="setpointTemperature" typeId="setpointTemperature"/>
+			<channel id="mode" typeId="modeCentralUnit"/>
+			<channel id="weeklyProgram" typeId="weeklyProgramCentralUnit"/>
+			<channel id="scenarioProgram" typeId="scenarioProgramCentralUnit"/>
+		</channels>
+
+		<properties>
+			<property name="vendor">BTicino/Legrand</property>
+			<property name="model">BTicino Central Unit 3550 (99 zones) or BTI-L/NT/HC/4695 (4 zones) </property>
+			<property name="ownDeviceType">430</property>
+		</properties>
+
+		<representation-property>ownId</representation-property>
+
+		<config-description>
+			<parameter name="where" type="text" readOnly="true">
+				<label>OpenWebNet Address (where)</label>
+				<description>The Central Unit can only assume where=0.</description>
+				<default>0</default>
+			</parameter>
+		</config-description>
+	</thing-type>
+</thing:thing-descriptions>