Added fileImports.json (#18540)

* Added fileImports.json

* add example files

* move example files

* delete old example files

* fix get file import by id example

* fix delete file import example

* fix typos

* resolve issues

* fix date

* more issue resolving

* .

* .

* add location to delete example

* support 200

* resolve comments

* update example

* remove whitespace

* readonly

* operationId

Author: moranraz