add manual ttfautohint instruction set modifications for U+0025, regular set (#297)

postbuild_processing/tt-hinting/Hack-Regular-TA.txt

@@ -7,5 +7,18 @@
 # U+0023 numbersign glyph ID 582
 uni0023 touch 0,1,2,3,18,19,20,21,22,23,24,25,26,27,28,31 x 0.25  @ 13
 
+# U+0025 percent glyph 761
+uni0025 touch 0,1,21,22,23,39    y 0.5    @10
+uni0025 touch 40                 y 0.75   @10
+uni0025 touch 41,42,43           y 0.5    @10
+uni0025 touch 51,52,53,70,71,72  y 0.5    @10
+
+uni0025 touch 0,1,21,22,23,39    y -0.25  @14
+uni0025 touch 8,9,10,30,31,32    y 0.25   @14
+uni0025 touch 51,52,53,70,71,72  y -0.5   @14
+uni0025 touch 40,41,42,43        y -0.25  @14
+
 # U+002B plus glyph ID 764
 uni002B touch 4,5 y 1.0 @ 12,13
+
+