Add built-in answer tones and automatic multiple-choice progression

tests/playtest_typed.py

@@ -25,6 +25,9 @@ settle();c['key'](run,'2',8,600);settle();c['inp'](run,[dict(keys=['shift','0'],
 type_text('sT pAuL');s=cap('typed-alias-input');print('input=',s.text(8,158,45),flush=True)
 assert s.text(8,158,45)=='sT pAuL_',s.text(8,158,45)
 press('enter',8,600);s=cap('typed-alias-feedback');assert s.text(8,158,30)=='CORRECT!',s.text(8,158,30)
+c['inp'](run,[dict(keys=[],fields=300)]);s=cap('typed-feedback-waits')
+assert s.text(8,19,45)=='Question 1 of 50   Score 1'
+assert s.text(8,183,48)=='Release your key, then SPACE to continue.'
 score=1;report.append(dict(question=1,code='MN',answer='sT pAuL',correct=True,correction=False));c['key'](run,'space',8,600);settle()
 for q in range(1,50):
  st=order[q];code,name,capital=rows[st];s=cap(f'typed-q{q+1:02d}-{code}')