scene-export-import support policy

[chengjoey]

What type of this PR

Add one of the following kinds:
/kind bugfix

What this PR does / why we need it:

scene-export-import support policy

Which issue(s) this PR fixes:

• Fixes #your-issue_number
• Erda Cloud Issue Link

Specified Reviewers:

/assign @your-reviewer

ChangeLog

Language	Changelog
🇺🇸 English	scene-export-import support policy
🇨🇳 中文	场景导入导出支持策略

Need cherry-pick to release versions?

Add comment like /cherry-pick release/1.0 when this PR is merged.

For details on the cherry pick process, see the cherry pick requests section under CONTRIBUTING.md.

[codecov]

Codecov Report

Merging #3244 (94c459f) into master (2cf693c) will increase coverage by 0.01%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #3244      +/-   ##
==========================================
+ Coverage   17.62%   17.63%   +0.01%     
==========================================
  Files        1372     1372              
  Lines      142004   142024      +20     
==========================================
+ Hits        25023    25052      +29     
+ Misses     114372   114359      -13     
- Partials     2609     2613       +4     

Impacted Files	Coverage Δ
apistructs/pipeline_yml.go	54.28% <0.00%> (-7.01%)	⬇️
modules/dop/services/autotest_v2/import.go	6.47% <0.00%> (-0.07%)	⬇️
modules/dop/services/autotest_v2/space_data.go	9.94% <71.42%> (+4.24%)	⬆️
modules/cmp/impl/clusters/credential.go	22.06% <0.00%> (-1.51%)	⬇️
...dules/core/monitor/alert/alert-apis/adapt/alert.go	16.56% <0.00%> (-0.32%)	⬇️
pkg/mock/mock.go	45.45% <0.00%> (+4.04%)	⬆️
modules/dop/services/autotest_v2/service.go	40.00% <0.00%> (+25.00%)	⬆️

[sfwn]

/approve