_rl_accel.c: fix & improve unicode2T1 & instanceStringWidthT1
_rl_accel.c: fix & improve unicode2T1 & instanceStringWidthT1

kanarelo/reportlab,Distrotech/reportlab,Distrotech/reportlab,Distrotech/reportlab,Distrotech/reportlab,kanarelo/reportlab,kanarelo/reportlab,Distrotech/reportlab,kanarelo/reportlab,kanarelo/reportlab