feat(filter): integrate exclude filter into parseStates and state_changed

Adapter now consults the exclude-pattern list (new `native.excludePatterns`
config option, multi-line string) at two points:

- `parseStates()` skips matching entities entirely. They are not registered
  as ioBroker objects and no state is written. A summary INFO line reports
  the count when the filter dropped anything from a sync.
- The `state_changed` event handler short-circuits matching live updates
  with a DEBUG line, so a filtered entity that still emits state changes
  in HA does not cause any churn in ioBroker.

Patterns are parsed once at adapter start: trimmed, empty lines and lines
starting with `#` are dropped. An empty resulting list means the filter is
inactive — adapter behaviour is then identical to the previous version.

Default config ships with example comments only, so existing installations
see no functional change after the update.

io-package.json

@@ -252,7 +252,8 @@
     "host": "127.0.0.1",
     "port": 8123,
     "password": "",
-    "secure": false
+    "secure": false,
+    "excludePatterns": "# Glob patterns, one per line. Lines starting with # are comments.\n# Example: filter out all entities prefixed with `iob_` regardless of domain:\n# *.iob_*"
   },
   "protectedNative": [
     "password"