remove number and scalar

Summarize the changes

Remove scalar and number types from source code, grammar and tests.

Ensure that

• New code is covered by unit and integration tests.
• Related issues would be automatically closed with gitlab's closing pattern (Closes #issue_number).
• Public modules are documented (check the rendered version with cargo doc --open).
• (if PEST grammar has changed) EBNF grammar reflects these changes (check the result with railroad diagram generator.

Closes Remove number and scalar data types (#863) Related Remove number and scalar data types (picodata#873)

Next steps

• Cherry-pick to: 24.7
• Update sbroad submodule in picodata/picodata
• Follow-up docs issue: Удалить поддержку SCALAR и NUMBER типов данных (docs#401)