Links Awakening: Implement New Game (#1334)

Adds Link's Awakening: DX. Fully imports and forks LADXR, with permission - https://github.com/daid/LADXR

worlds/ladx/LADXR/patches/bank3e.asm/message.asm

@@ -0,0 +1,16 @@
+MessageCopyString:
+.loop:
+    ldi  a, [hl]
+    ld   [de], a
+    cp   $ff
+    ret  z
+    inc  de
+    jr   .loop
+
+MessageAddSpace:
+    ld   a, $20
+    ld   [de], a
+    inc  de
+    ld   a, $ff
+    ld   [de], a
+    ret