添加dadk支持 (#263)

* 引入dadk，使用dadk0.1.1来编译test-relibc程序

* 由于gitee仓库体积限制导致无法继续使用gitee上的rust索引，因此更换为清华源

* github workflow的环境中，安装dadk

* Auto configure dragonos rust toolchain

user/dadk/config/test_relibc-0.1.0.dadk

@@ -0,0 +1,28 @@
+{
+  "name": "test_relibc",
+  "version": "0.1.0",
+  "description": "一个用来测试relibc能够正常运行的app",
+  "task_type": {
+    "BuildFromSource": {
+      "Local": {
+        "path": "apps/test_relibc"
+      }
+    }
+  },
+  "depends": [
+    {
+      "name": "relibc",
+      "version": "0.1.0"
+    }
+  ],
+  "build": {
+    "build_command": "make"
+  },
+  "install": {
+    "in_dragonos_path": "/bin"
+  },
+  "clean": {
+    "clean_command": "make clean"
+  },
+  "envs": []
+}