Load input into adjacency-list-like structure

brood/src/data.rs

@@ -0,0 +1,18 @@
+pub struct Page {
+    pub link_idx: u32,
+    pub ns: u16,
+    pub id: u32,
+    pub title: String,
+    pub redirect: bool,
+}
+
+pub struct Link {
+    pub to: u32,
+    pub start: u32,
+    pub end: u32,
+}
+
+pub struct AdjacencyList {
+    pub pages: Vec<Page>,
+    pub links: Vec<Link>,
+}