Add OpenApi v3.0.1 yaml files for the existing swaggers files

[VincentBonnefoy42DS]

This Pull Request comes from the need to use the latest OpenAPI v3.0.1 yaml format in order to generate the Java classes using the latest version of the OpenAPI Generator Maven Plugin.

The steps used to produce the OpenApi v3.0.1 files for the corresponding swagger files are the following:

• Create a new file and rename it *.oas.yaml
• Copy the swagger file content and paste it in the Swagger Editor
• It will ask if we want to convert the JSON content to YAML -> "Ok"
• Click on "Edit" -> "Convert to OpenAPI 3"
• Copy the converted content to the target file
• Format the yaml file, so they all have the same format

In addition to the above steps for existing swagger files, the following missing swagger files were added:

• TMF620 - Product Catalog Management
• TMF648 - Quote Management
• TMF668 - Partnership Type
• TMF699 - Sales Management