LCD添加调试信息控制宏

Signed-off-by: fighter <1678764298@qq.com>
1.修改shell最多容纳16条命令
2.shell组件添加调试控制宏
3.shell移出串口的接收发送接口增强程序可移植性
添加摄像头任务
调整SCCB总线驱动模块中U秒延时函数
Merge pull request #1 from Altiumhu/test

test git
Merge pull request #1 from Altiumhu/master

合并测试
Merge remote-tracking branch 'origin/master'
Merge pull request #2 from wangzhouwang/master

下拉代码
Signed-off-by: fighter <1678764298@qq.com>
Merge pull request #2 from Altiumhu/master

Merge pull request #2 from wangzhouwang/master
Merge pull request #3 from wangzhouwang/master

下拉代码
c

Signed-off-by: Altiumhu <279894340@qq.com>