Patch add idr (#52)

* 增加了idr模块

* 增加了IDR模块,并尝试覆盖上一个错误版本.

* 增加了IDR模块

* 完善了注释内容

* 修改了test-idr.c文件

* 进一步完善函数注释

Signed-off-by: guanjinquan <1666320330@qq.com>
Co-authored-by: fslongjin <longjin@RinGoTek.cn>

kernel/process/process.c

@@ -496,6 +496,7 @@ ul initial_kernel_thread(ul arg)
         ktest_start(ktest_test_bitree, 0),
         ktest_start(ktest_test_kfifo, 0),
         ktest_start(ktest_test_mutex, 0),
+        ktest_start(ktest_test_idr, 0),
         // usb_pid,
     };
     kinfo("Waiting test thread exit...");