Upgrade babel version, add MaxRectsPacker rotation support

package.json

@@ -59,9 +59,9 @@
   },
   "homepage": "https://github.com/odrick/free-tex-packer",
   "devDependencies": {
-    "@babel/core": "^7.2.2",
-    "@babel/preset-env": "^7.3.1",
-    "@babel/preset-react": "^7.0.0",
+    "@babel/core": "^7.6.4",
+    "@babel/preset-env": "^7.6.3",
+    "@babel/preset-react": "^7.7.4",
     "@jvitela/mustache-wax": "^1.0.1",
     "babel-loader": "^8.0.5",
     "babel-plugin-transform-runtime": "^6.23.0",
@@ -77,7 +77,7 @@
     "glob": "^7.1.1",
     "json-loader": "^0.5.4",
     "jszip": "^3.1.3",
-    "maxrects-packer": "^2.0.0",
+    "maxrects-packer": "^2.5.0",
     "mustache": "^3.0.1",
     "optimist": "^0.6.1",
     "plist": "^3.0.1",

src/client/packers/MaxRectsPacker.js

@@ -1,7 +1,6 @@
 let MaxRectsPackerEngine = require("maxrects-packer").MaxRectsPacker;
 
 import Packer from "./Packer";
-import Rect from "../math/Rect";
 
 const METHOD = {
     Smart: "Smart",
@@ -22,7 +21,8 @@ class MaxRectsPacker extends Packer {
         let options = {
             smart: (method === METHOD.Smart || method === METHOD.SmartSquare),
             pot: false,
-            square: (method === METHOD.Square || method === METHOD.SmartSquare)
+            square: (method === METHOD.Square || method === METHOD.SmartSquare),
+            allowRotation: this.allowRotate
         };
 
         let packer = new MaxRectsPackerEngine(this.binWidth, this.binHeight, 0, options);
@@ -43,6 +43,9 @@ class MaxRectsPacker extends Packer {
         for(let item of rects) {
             item.data.frame.x = item.x;
             item.data.frame.y = item.y;
+            if (item.rot) {
+                item.data.rotated = true;
+            }
             res.push(item.data);
         }