Clean repo for open source release

Remove build artifacts, dev tool configs, unused dependencies,
and third-party source dumps. Add proper README, update .gitignore,
clean up Makefile.

src/main/resources/data/tiedup/recipes/paddle.json

@@ -0,0 +1,20 @@
+{
+  "type": "minecraft:crafting_shaped",
+  "pattern": [
+    " X ",
+    " X ",
+    " # "
+  ],
+  "key": {
+    "#": {
+      "item": "minecraft:blaze_rod"
+    },
+    "X": {
+      "item": "minecraft:blaze_powder"
+    }
+  },
+  "result": {
+    "item": "tiedup:paddle",
+    "count": 1
+  }
+}

src/main/resources/data/tiedup/recipes/tiedup_guide_book.json

@@ -0,0 +1,22 @@
+{
+  "type": "minecraft:crafting_shaped",
+  "category": "misc",
+  "pattern": [
+    " R ",
+    "RBR",
+    " R "
+  ],
+  "key": {
+    "R": {
+      "item": "tiedup:ropes"
+    },
+    "B": {
+      "item": "minecraft:book"
+    }
+  },
+  "result": {
+    "item": "patchouli:guide_book",
+    "count": 1,
+    "nbt": "{\"patchouli:book\":\"tiedup:guide\"}"
+  }
+}