[INLONG-11042][SDK] Transform refactor function package

[emptyOVO]

Fixes #11042

Motivation

• sort the function package as four parts: arithmetic, string, flowcontrol, temporal
• The corresponding test package will be sorted too

Modifications

Verifying this change

(Please pick either of the following options)

• This change is a trivial rework/code cleanup without any test coverage.

• This change is already covered by existing tests, such as:
  (please describe tests)

• This change added tests and can be verified as follows:

  (example:)

  • Added integration tests for end-to-end deployment with large payloads (10MB)
  • Extended integration test for recovery after broker failure

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a follow-up issue for adding the documentation

[emptyOVO]

Because function in #10796 updates very fast, conflicts in this pr will be processed uniformly after that

[emptyOVO]

remaining function unmerged in #11319 #11318 #11288 #11248 #11031 #10892 will be followed up after these pr be merged