Feature(e2e_test): new api of e2e executor; add case 'data lost after compaction and restart'

[Benxiaohai001]

Required checklist

• Sample config files updated (config,meta/config and default config)
• If there are user-facing changes, the documentation needs to be updated prior to approving the PR( Link )
• If there are any breaking changes to public APIs, please add the api change label.
• Signed CLA (if not already signed)

Which issue does this PR close?

Related #.

Rationale for this change

• Make old API of e2e test case executor deprecated, move Step to StepLegacy, execute_steps() to execute_steps_legacy().
• Add new API for e2e test case executor, add trait Step, struct E2eContext, add step ShellStep to execute shell commands.
  • Some implementations of Step have fields that can lazy init their values using a reference of E2eContext, or can even modify context variables in E2eContext before or after their execution.
  • CnosdbMetaTestHelper and CnosdbDataTestHelper now store configs of cnosdb meta nodes (meta::store::config::Opt) and data nodes (config::Config).
• Add restart test case_6 to test whether cnosdb will lost data after a compaction and restart.

Are there any user-facing changes?