Import OpenAPI path parameter in a format that's bulk mappable to an environment variable

[joostholslag]

tldr: openapi path parameters are imported as ':var'. This prohibits mapping to an environment variable '{{var}} in bulk.
Issue described in this community post:
https://community.postman.com/t/importing-openapi3-with-path-variable/45427/3

This is mostly relevant if a path parameter is used in many paths. In my case it's like a hundred paths that use the parameter, which makes it too cumbersome to map manually. (workaround in the community post).
I think it makes sense to allow importing path parameters as variable at collection level instead of as path parameters as it is currently.
Especially if the path parameter is defined as a seperate component parameter, as it is in my spec. (spec, collection and environment available via the community post.)

This issue seems similar to: #643