Build packages with pinned dependencies from .lock file

• I have searched the issues of this repo and believe that this is not a duplicate.
• I have searched the documentation and believe that my question is not covered.

Feature Request

As title says, this feature is about to poetry build build wheels and packages with pinned versions specified in poetry.lock file. Command can be something like poetry build --locked.

Its duplicate of closed #1307. Reason to close this issue was argument about libraries and applications (in short):

Libraries use wheels for distribution. Their dependencies should not be very tight so libraries can coexist with each other. Thats why poetry build dont use versions from lock file. There are also applications. Applications need pinned dependencies from lock file, so all environments (dev and prod) use same dependencies. Applications should use docker for distribution.

So I think its not actually true that applications should not use wheels and pypi for distribution, sometimes its reasonable to have package with pinned dependencies from lock file. Example of such use case can be some cli tools like https://github.com/ytdl-org/youtube-dl, so development team and end-user use same dependencies. Another example is some backend application that deployed on server by wheel package.

Start with the poetry build entry point and review how poetry.lock is currently treated; closed issue #1307 provides relevant context. Resolve the library-versus-application behavior and define the scope of a possible --locked mode before implementation, with completion requiring agreed behavior for built wheels and packages.