refactor owrx.form -> owrx.form.input

owrx/form/input/receiverid.py

@@ -0,0 +1,10 @@
+from owrx.form.input.converter import Converter
+
+
+class ReceiverKeysConverter(Converter):
+    def convert_to_form(self, value):
+        return "" if value is None else "\n".join(value)
+
+    def convert_from_form(self, value):
+        # \r\n or \n? this should work with both.
+        return [v.strip("\r ") for v in value.split("\n")]