[feat] tools-v2: add do-snapshot

[Xinlong-Chen]

What problem does this PR solve?

Issue Number: #2023

Problem Summary: add command curve bs snapshot one

What is changed and how it works?

What's Changed:

1. add tools-v2/pkg/cli/command/curvebs/snapshot/snapshot.go
2. add tools-v2/pkg/cli/command/curvebs/snapshot/one/one.go
3. modify tools-v2/pkg/cli/command/curvebs/bs.go

How it Works:
implement by using rpc snapshot

$ curve bs snapshot one 192.168.20.149:8201:0 --logicalpoolid=1 --copysetid=10                                                   1 ↵
+-----------------------+---------+---------+--------+
|         PEER          | COPYSET | RESULT  | REASON |
+-----------------------+---------+---------+--------+
| 192.168.20.149:8201:0 | (1:10)  | success | null   |
+-----------------------+---------+---------+--------+

Side effects(Breaking backward compatibility? Performance regression?):

Check List

• Relevant documentation/comments is changed or added
• I acknowledge that all my contributions will be made under the project's license

[Xinlong-Chen]

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[Xinlong-Chen]

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[Xinlong-Chen]

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[Xinlong-Chen]

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[Cyber-SiKu]

curve bs snapshot copyset is better?

[Xinlong-Chen]

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[Xinlong-Chen]

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[Cyber-SiKu]

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