[curve/toos-v2]: add set-scan-state

[Cyber-SiKu]

Is your feature request related to a problem? (你需要的功能是否与某个问题有关?)

we'd like to support bs set scan command in curve tool

• The implementation of the old tool is here：

  curve/src/tools/schedule_tool.cpp

  Lines 84 to 97 in 8d6caf7

  	int ScheduleTool::DoSetScanState() {
  	if (mdsClient_->Init(FLAGS_mdsAddr) != 0) {
  	std::cout << "Init mds client fail" << std::endl;
  	return -1;
  	}
  	auto lpid = FLAGS_logical_pool_id;
  	auto scanEnable = FLAGS_scanEnable;
  	auto retCode = mdsClient_->SetLogicalPoolScanState(lpid, scanEnable);
  	std::cout << (scanEnable ? "Enable" : "Disable")
  	<< " scan for logicalpool(" << lpid << ")"
  	<< (retCode == 0 ? " success" : " fail") << std::endl;
  	return retCode;
  	}

• The old command input and out put:

curve_ops_tool set-scan-state

-------
output:
Enable scan for logicalpool(*) succes

Refer to tool develop guide to get start, and paste the result of the command in pr.

Build compilation environment：https://github.com/opencurve/curve/blob/master/docs/cn/build_and_run.md

Describe the solution you'd like (描述你期望的解决方法)

Add subcommand clinet to curve bs list.

Describe alternatives you've considered (描述你想到的折衷方案)

Additional context/screenshots (更多上下文/截图)

[zhanghuidinah]

• This issue has been chosen for community developer activities. Welcome to feel free to try it. After the PR is merged, you will receive a gift package and a certificate as a community contributor.

• Developer Activities Registration Steps please ref [2023 Q2 Developer Activities]: Call For Participation！ #2334 (comment)

[montaguelhz]

@Cyber-SiKu can you assign it to me? I want to try it, thanks.