Merge pull request #29 from slootsky/feature/return_index_of_textbox

return the index of the textbox created by add_text

Author: makermelissa

adafruit_magtag/magtag.py

@@ -182,6 +182,8 @@ def add_text(
         self._text_anchor_point.append(text_anchor_point)
         self._text_is_data.append(bool(is_data))
 
+        return len(self._text) - 1
+
     # pylint: enable=too-many-arguments
 
     @staticmethod