[homematic] HUMIDITY and CONTROL_MODE as PaperUI standard channels

HomematicIP added humidity and HVAC control mode under new channel
HEATING_CLIMATECONTROL_TRANSCEIVER|HUMIDITY. Those channels won't
show in PaperUI unless "Advanced" is selected. This pull request
adds those channels as standard.

Impacted HomematicIP devices: HmIP-BWTH, HmIP-BWTH24,
HmIPW-STHD, HmIPW-STH, HmIPW-WTH, HmIP-STHD, HmIP-STH, HMIP-WTH,
HmIP-WTH-2, HmIP-WTH-B
The devices HmIP-eTRV* and HmIP-WT only support CONTROL_MODE not
Humidity.

resolves: #11829

Signed-off-by: Dirk Benecke <dirkbe@web.de>
Signed-off-by: Dirk Benecke <dirkbenecke@Dirks-MBP.fritz.box>

bundles/org.openhab.binding.homematic/src/main/resources/homematic/standard-datapoints.properties

@@ -153,6 +153,8 @@ HEATING_CLIMATECONTROL_TRANSCEIVER|LEVEL
 HEATING_CLIMATECONTROL_TRANSCEIVER|ACTUAL_TEMPERATURE
 HEATING_CLIMATECONTROL_TRANSCEIVER|VALVE_STATE
 HEATING_CLIMATECONTROL_TRANSCEIVER|SET_POINT_TEMPERATURE
+HEATING_CLIMATECONTROL_TRANSCEIVER|HUMIDITY
+HEATING_CLIMATECONTROL_TRANSCEIVER|CONTROL_MODE
 
 HEATING_CLIMATECONTROL_RECEIVER|LEVEL
 HEATING_CLIMATECONTROL_RECEIVER|ACTUAL_TEMPERATURE