new tagging system (see #5) WIP

- diacritics stacking does not work
- centre align with align-to-this-x-pos is untested

src/net/torvald/terrarumsansbitmap/GlyphProps.kt

@@ -0,0 +1,28 @@
+package net.torvald.terrarumsansbitmap
+
+/**
+ * Created by minjaesong on 2018-08-07.
+ */
+data class GlyphProps(
+        val width: Int,
+        val writeOnTop: Boolean,
+        val alignWhere: Int,
+        val alignXPos: Int,
+        val rtl: Boolean = false,
+        val diacriticsStackDown: Boolean = false
+) {
+    companion object {
+        const val LEFT = 0
+        const val RIGHT = 1
+        const val CENTRE = 2
+    }
+
+    constructor(width: Int, tags: Int) : this(
+            width,
+            tags.ushr(7).and(1) == 1,
+            tags.ushr(5).and(3),
+            tags.ushr(1).and(15),
+            tags.and(1) == 1,
+            tags.ushr(8).and(1) == 1
+    )
+}