refactor Runtime interface

[SparkYuan]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

2. What is the scope of this PR (e.g. component or file name):

pkg/engine/runtime

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

refactor engine/runtime and do not change any features

• combine Runtime interface request params and result params into Request struct and Response struct to make it easier to iterate in future
• add dryRun option in Runtime.Apply

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

6. Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[coveralls]

Coverage increased (+0.007%) to 72.628% when pulling d8aa884 on SparkYuan:refactor_runtime into b8ba9fc on KusionStack:main.

[howieyuen]

squash commits into one, try to keep PR mono

[SparkYuan]

This PR will be merged in suqash automatically by github

[howieyuen]

This PR will be merged in suqash automatically by github

I have to say, this is really not a good habit.

[howieyuen]

please reorganize import statements by the way when squashing commits

[adohe]

overall lgtm, will open other PR to fix import issue.