Added axisY inside option

Update to enable the axisY inside option

src/core.js

@@ -108,7 +108,6 @@ c3_chart_internal_fn.initParams = function () {
     $$.defocusedTargetIds = [];
 
     $$.xOrient = config.axis_rotated ? "left" : "bottom";
-    $$.yOrient = config.axis_rotated ? "bottom" : "left";
     $$.yOrient = config.axis_rotated ? (config.axis_y_inner ? "top" : "bottom") : (config.xis_y_inner ? "right" : "left");
     $$.y2Orient = config.axis_rotated ? (config.axis_y_inner ? "bottom" : "top") : (config.xis_y_inner ? "left" : "right");
     $$.subXOrient = config.axis_rotated ? "left" : "bottom";