Filer: process Continuation In filing

[JazzarKarim]

• [ ] Create new business similar to IAs.
• [ ] Populate foreign fields in the business table.
• [ ] New corp number is Cxxxxxxx (see #20936) -- test this.
• [ ] Implement anything specific to continuation in.
  • new foreign jurisdiction object?
  • new object to link C company to original A company (similar to amalgamations)?
• [ ] Make Axxx corporation historical (if it exists).- OPS TICKET
• [ ] Add/update unit tests.