add: romaji/hiragana/katakana options & sound management

plugins/hirakata/files/hira.txt

@@ -0,0 +1,46 @@
+あ a.mp3
+い i.mp3
+う u.mp3
+え e.mp3
+お o.mp3
+か ka.mp3
+き ki.mp3
+く ku.mp3
+け ke.mp3
+こ ko.mp3
+さ sa.mp3
+し shi.mp3
+す su.mp3
+せ se.mp3
+そ so.mp3
+た ta.mp3
+ち chi.mp3
+つ tsu.mp3
+て te.mp3
+と to.mp3
+な na.mp3
+に ni.mp3
+ぬ nu.mp3
+ね ne.mp3
+の no.mp3
+は ha.mp3
+ひ hi.mp3
+ふ fu.mp3
+へ he.mp3
+ほ ho.mp3
+ま ma.mp3
+み mi.mp3
+む mu.mp3
+め me.mp3
+も mo.mp3
+や ya.mp3
+ゆ yu.mp3
+よ yo.mp3
+ら ra.mp3
+り ri.mp3
+る ru.mp3
+れ re.mp3
+ろ ro.mp3
+わ wa.mp3
+を o.mp3
+ん n.mp3