Integrate review comments: Readme + properties

Signed-off-by: Stefan Triller <github@stefantriller.de>

bundles/org.openhab.binding.ipcamera/README.md

@@ -243,6 +243,7 @@ The channels are kept consistent as much as possible from brand to brand to make
 | `gifHistory` | String | The 50 most recent filenames the binding has used unless reset. |
 | `gifHistoryLength` | Number | How many filenames are in the `gifHistory`. |
 | `gotoPreset` | String | ONVIF cameras that can move only. Will cause the camera to move to a preset location. |
+| `hasExternalAlarmInputs` | Switch | Some Hikvision cameras support external alarm inputs, such as PIR sensors, enable this if your camera support them. | 
 | `hlsUrl` | String | The URL for the ipcamera.m3u8 file. |
 | `humanAlarm` | Switch | When a camera detects a human this switch will turn ON. |
 | `imageUrl` | String | The URL for the ipcamera.jpg file. |

bundles/org.openhab.binding.ipcamera/src/main/resources/OH-INF/i18n/ipcamera.properties

@@ -382,6 +382,8 @@ thing-type.config.ipcamera.hikvision.group.Image ch Settings.label = Image chann
 thing-type.config.ipcamera.hikvision.group.Image ch Settings.description = Settings for the image channel features which is not recommended to be used. See readme for more info.
 thing-type.config.ipcamera.hikvision.group.Settings.label = Main Settings
 thing-type.config.ipcamera.hikvision.group.Settings.description = Settings required to connect to the camera.
+thing-type.config.ipcamera.hikvision.hasExternalAlarmInputs.label=Has external alarm inputs.
+thing-type.config.ipcamera.hikvision.hasExternalAlarmInputs.description=Enable if the camera has external alarm inputs (such as PIR sensors etc.)
 thing-type.config.ipcamera.hikvision.hlsOutOptions.label = HLS Out Options
 thing-type.config.ipcamera.hikvision.hlsOutOptions.description = This gives you direct access to specify your own FFmpeg options to be used.
 thing-type.config.ipcamera.hikvision.ipAddress.label = IP Address