Add procs for save/get settings

src/status/settings.nim

@@ -0,0 +1,11 @@
+import core
+import json
+
+proc saveSettings*(key: string, value = JsonNode) =
+  discard callPrivateRPC("settings_saveSetting", %* [
+    [key, value]
+  ])
+
+
+proc getSettings*(): string = callPrivateRPC("settings_getSettings")
+# TODO: return an Table/Object instead of string