Add CPU,RAM sysinfo support to the REST API to help with bot system monitoring

freqtrade/rpc/rpc.py

@@ -1,7 +1,7 @@
 """
 This module contains class to define a RPC communications
 """
-import logging
+import logging, psutil
 from abc import abstractmethod
 from datetime import date, datetime, timedelta, timezone
 from math import isnan
@@ -870,3 +870,6 @@ class RPC:
                 'subplots' not in self._freqtrade.strategy.plot_config):
             self._freqtrade.strategy.plot_config['subplots'] = {}
         return self._freqtrade.strategy.plot_config
+
+    def _rpc_sysinfo(self) -> Dict[str, Any]:
+        return {"cpu_pct": psutil.cpu_percent(interval=1, percpu=True), "ram_pct": psutil.virtual_memory().percent}