Adds legacyFolders property to package manifest.

Author: momo-the-monster

Assets/UdonSharp/package.json

@@ -1,24 +1,28 @@
 {
-  "name": "com.merlinvr.udonsharp",
-  "displayName": "UdonSharp",
-  "version": "1.0.0-dev-serialization",
-  "unity": "2019.4",
-  "description": "An experimental compiler for compiling C# to Udon assembly",
-  "gitDependencies": {
-    "com.vrchat.base": "https://github.com/vrchat/packages.git?path=/packages/com.vrchat.base#3.0.1",
-    "com.vrchat.worlds": "https://github.com/vrchat/packages.git?path=/packages/com.vrchat.worlds#3.0.1"
-  },
-  "url": "https://github.com/vrchat-community/UdonSharp.git?path=Assets/UdonSharp#1.0-dev-serialization",
-  "samples": [
-    {
-      "displayName": "CustomInspectors",
-      "description": "Custom Inspector Example",
-      "path": "Samples~/CustomInspectors"
-    },
-    {
-      "displayName": "Tutorials",
-      "description": "Tutorials Example",
-      "path": "Samples~/Tutorials"
-    }
-  ]
+	"name" : "com.merlinvr.udonsharp",
+	"displayName" : "UdonSharp",
+	"version" : "1.0.0-dev-serialization",
+	"unity" : "2019.4",
+	"description" : "An experimental compiler for compiling C# to Udon assembly",
+	"gitDependencies" : {
+		"com.vrchat.base" : "https://github.com/vrchat/packages.git?path=/packages/com.vrchat.base#3.0.1",
+		"com.vrchat.worlds" : "https://github.com/vrchat/packages.git?path=/packages/com.vrchat.worlds#3.0.1"
+	},
+	"url" : "https://github.com/vrchat-community/UdonSharp.git?path=Assets/UdonSharp#1.0-dev-serialization",
+	"samples" : [
+		{
+			"displayName" : "CustomInspectors",
+			"description" : "Custom Inspector Example",
+			"path" : "Samples~/CustomInspectors"
+		},
+		{
+			"displayName" : "Tutorials",
+			"description" : "Tutorials Example",
+			"path" : "Samples~/Tutorials"
+		}
+	],
+	"legacyFolders" : {
+		"Assets\\UdonSharp" : "b031f928e5c709b4887f6513084aaa51",
+		"Assets\\Gizmos\\UdonSharp" : "6e940dfc89ce4ca41b651e05bc21be6b"
+	}
 }