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

tools/bootstrap.sh

@@ -123,7 +123,7 @@ rustInstall() {
 		echo "curl -sSf https://static.rust-lang.org/rustup.sh | sh -s -- --channel=nightly"
 		exit
 	else
-        echo "是否为Rust换源为Gitee镜像源？"
+        echo "是否为Rust换源为国内镜像源？(Tuna)"
 		echo "如果您在国内，我们推荐您这样做，以提升网络速度。"
 		echo "*WARNING* 这将会替换原有的镜像源设置。"
 		printf "(y/N): "
@@ -141,6 +141,7 @@ rustInstall() {
         rustup component add rust-src
         rustup component add llvm-tools-preview
 		rustup target add x86_64-unknown-none
+		cargo install dadk
 		echo "Rust已经成功的在您的计算机上安装！请运行 source ~/.cargo/env 以使rust在当前窗口生效！"
 	fi
 }

tools/change_rust_src.sh

@@ -2,7 +2,7 @@
 echo -e "[source.crates-io]   \n \
 registry = \"https://github.com/rust-lang/crates.io-index\"  \n \
 \n \
-replace-with = 'dragonos-gitee' \n \
-[source.dragonos-gitee] \n \
-registry = \"https://gitee.com/DragonOS/crates.io-index.git\"	 \n \
+replace-with = 'tuna' \n \
+[source.tuna] \n \
+registry = \"https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git\"	 \n \
 " > ~/.cargo/config

tools/write_disk_image.sh

@@ -90,7 +90,7 @@ mkdir -p ${root_folder}/bin/disk_mount/proc
 mkdir -p ${root_folder}/bin/disk_mount/usr
 cp -r ${root_folder}/bin/user/* ${root_folder}/bin/disk_mount/bin
 touch ${root_folder}/bin/disk_mount/dev/keyboard.dev
-cp -r ${root_folder}/bin/sysroot/usr/* ${root_folder}/bin/disk_mount/usr/ 
+cp -r ${root_folder}/bin/sysroot/* ${root_folder}/bin/disk_mount/
 
 # 设置 grub 相关数据
 if [ ${ARCH} == "i386" ] || [ ${ARCH} == "x86_64" ]; then