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/plan.py

@@ -0,0 +1,38 @@
+
+
+# Helper class to read and store planomizer data
+class Plan:
+    def __init__(self, filename):
+        self.forced_items = {}
+        self.item_pool = {}
+        item_group = {}
+
+        for line in open(filename, "rt"):
+            line = line.strip()
+            if ";" in line:
+                line = line[:line.find(";")]
+            if "#" in line:
+                line = line[:line.find("#")]
+            if ":" not in line:
+                continue
+            entry_type, params = map(str.strip, line.upper().split(":", 1))
+
+            if entry_type == "LOCATION" and ":" in params:
+                location, item = map(str.strip, params.split(":", 1))
+                if item == "":
+                    continue
+                if item.startswith("[") and item.endswith("]"):
+                    item = item_group[item[1:-1]]
+                if "," in item:
+                    item = list(map(str.strip, item.split(",")))
+                self.forced_items[location] = item
+            elif entry_type == "POOL" and ":" in params:
+                item, count = map(str.strip, params.split(":", 1))
+                self.item_pool[item] = self.item_pool.get(item, 0) + int(count)
+            elif entry_type == "GROUP" and ":" in params:
+                name, item = map(str.strip, params.split(":", 1))
+                if item == "":
+                    continue
+                if "," in item:
+                    item = list(map(str.strip, item.split(",")))
+                item_group[name] = item