Implement read_report RPC

platformio/home/rpc/handlers/memusage.py

@@ -36,6 +36,10 @@ class MemUsageRPC(BaseRPCHandler):
         )
         return memusage.list_reports(report_dir)[-1]
 
+    @staticmethod
+    def read_report(path):
+        return memusage.read_report(path)
+
     def summary(self, report_path):
         max_top_items = 10
         report_dir = os.path.dirname(report_path)