Touhou Danmakufu ph3sx v.1.21a

• Fixed MatrixMultiply and MatrixDivide functioning incorrectly.
• Added MatrixTransformVector for transforming a Vector3 by a transformation matrix.
• Added a hex overload for SetFogParam.
• Added a floored division operation. ("~/" and "~/=")
• Added "resize", a function for resizing arrays.
• Modified the functionality of the array slice operation and operator.
  • Upper slice bound is automatically capped at the array's size.
• More options for text object tags. (See "New Scripting Features.txt")
• Increased the smoothness of rendered fonts.
• Fixed SetShotIntersectionCircle and SetShotIntersectionLine not working.
• Fixed a memory leak issue that was causing the "too many open files" error message.
• Using ObjRender_SetAlpha on a 2D sprite list object whose vertices were closed will now have an alpha-multiply effect.
• Optimizations.