Ignore z2m config

It'll keep syncing state.json which is pointless, and my config is
basically stock. I have seen Z2M re-write this file to include the
authorisation information too, so might as well get ahead of that.

.gitignore

@@ -34,3 +34,4 @@ airsonos.xml
 config/solcast.sync-conflict*
 config/solcast.json
 .ssh
+zigbee2mqtt/

config/zigbee2mqtt/configuration.yaml

@@ -1,39 +0,0 @@
-homeassistant: true
-frontend:
-  port: 8099
-permit_join: false
-mqtt:
-  base_topic: zigbee2mqtt
-  server: mqtt://core-mosquitto
-  keepalive: 60
-  reject_unauthorized: true
-  version: 4
-serial:
-  port: /dev/ttyACM0
-  adapter: deconz
-devices:
-  '0x804b50fffe100ed4':
-    friendly_name: IKEA Remote
-  '0x00158d0008091c32':
-    friendly_name: Bo's Office Door
-    debounce: 1
-    filtered_attributes: []
-    optimistic: true
-  '0x00158d00080915bd':
-    friendly_name: Ri's Office Door
-  '0x00158d0007e7725b':
-    friendly_name: Back Door
-  '0x00158d0008091b58':
-    friendly_name: Front Door
-  '0x00158d0007e4c4f2':
-    friendly_name: Fridge Door
-    debounce: 1
-    optimistic: true
-  '0x5c0272fffee93bae':
-    friendly_name: Bo's Office Motion Sensor
-  '0x00124b002359ed4c':
-    friendly_name: Ri's Office
-  '0xa4c138fda4db2c5e':
-    friendly_name: Bo's Office PIR 2
-  '0x84b4dbfffe850fda':
-    friendly_name: Unused presence sensor

config/zigbee2mqtt/state.json

@@ -1,90 +0,0 @@
-{
-    "0x804b50fffe100ed4": {
-        "battery": 100,
-        "update": {
-            "state": "available"
-        },
-        "update_available": true,
-        "linkquality": 215
-    },
-    "0x00158d0008091c32": {
-        "contact": false,
-        "voltage": 3005,
-        "battery": 44,
-        "temperature": 19,
-        "linkquality": 255,
-        "device_temperature": 15,
-        "power_outage_count": 8
-    },
-    "0x00158d00080915bd": {
-        "contact": true,
-        "voltage": 3005,
-        "battery": 44,
-        "temperature": 17,
-        "linkquality": 255,
-        "device_temperature": 13,
-        "power_outage_count": 7
-    },
-    "0x00158d0007e7725b": {
-        "contact": true,
-        "voltage": 2975,
-        "battery": 36,
-        "temperature": 18,
-        "linkquality": 255,
-        "device_temperature": 15,
-        "power_outage_count": 8
-    },
-    "0x00158d0008091b58": {
-        "contact": true,
-        "voltage": 3025,
-        "battery": 50,
-        "temperature": 12,
-        "linkquality": 255,
-        "device_temperature": 12,
-        "power_outage_count": 13
-    },
-    "0x00158d0007e4c4f2": {
-        "contact": true,
-        "voltage": 2985,
-        "battery": 39,
-        "temperature": 21,
-        "linkquality": 255,
-        "device_temperature": 18,
-        "power_outage_count": 41
-    },
-    "0x5c0272fffee93bae": {
-        "occupancy": false,
-        "tamper": false,
-        "battery_low": false,
-        "linkquality": 255
-    },
-    "0x00124b002359ed4c": {
-        "voltage": 3000,
-        "battery": 100,
-        "occupancy": false,
-        "tamper": false,
-        "battery_low": false,
-        "linkquality": 191
-    },
-    "0xa4c138fda4db2c5e": {
-        "occupancy": false,
-        "battery": 50,
-        "sensitivity": "high",
-        "keep_time": "120",
-        "illuminance": 538,
-        "linkquality": 127
-    },
-    "0x84b4dbfffe850fda": {
-        "target_distance": 0,
-        "presence": false,
-        "maximum_range": 3,
-        "radar_sensitivity": 2,
-        "minimum_range": 0,
-        "self_test": "check_success",
-        "detection_delay": 0.1,
-        "fading_time": 5,
-        "cli": " ",
-        "illuminance_lux": 0,
-        "linkquality": 255
-    }
-}