Update label.py

fix for missing _anchor_point in init

Author: FoamyGuy

adafruit_display_text/label.py

@@ -65,7 +65,8 @@ def __init__(self, font, *, text=None, max_glyphs=None, color=0xffffff,
         self.width = max_glyphs
         self.font = font
         self._text = None
-
+        self._anchor_point = (0, 0)
+        
         self.palette = displayio.Palette(2)
         self.palette.make_transparent(0)
         self.palette[1] = color