Import-related updates for 7.23.0

[nicolo-ribaudo]

• Add createImportExpressions parser option (Add createImportExpressions parser option #15682)
• Add parsing support for the "source phase imports" proposal (Add parsing support for the "source phase imports" proposal #15829)
  • Investigate fetch-based transform support? (Support transforming import source for wasm #15870)
• Add parsing support for the "deferred import evaluation" proposal (Implement import defer parsing support #15845)
  • Add CommonJS transform support for the "deferred import evaluation" proposal (Implement import defer proposal transform support #15878)

Needs docs:

• Add parsing support for the "source phase imports" proposal #15829 (Parser docs for 7.23.0 website#2824)
• Implement import defer parsing support #15845 (Parser docs for 7.23.0 website#2824)
• Implement import defer proposal transform support #15878

⚠️ Use the "Rebase and merge" button!

[babel-bot]

Build successful! You can test your changes in the REPL here: https://babeljs.io/repl/build/55557/