Update 'CARDPUTER CircuitPython/full_display_test.py'

CARDPUTER CircuitPython/full_display_test.py

     elif key == "CTRLD":
         text = "Press CTRL+D to clear text\n\n"
     else:
+        ## WRAPPING
+        ## calculate wrapping when entering a character 
+        lines = text.split("\n")
+        current_line = lines[len(lines)-1]
+        if len(current_line) > 35:
+            text=text+"\n" # <- start a new line here
+        ##############################################
         text = text+key
     text_area.text = text