Build library project locally on Windows

[rolfbjarne]

Currently, in some cases we need a remote connection to build library projects on Windows, because we need Apple's toolchain to process resources.

However, if we fix/implement bundling original assets (unprocessed) in library projects (#19028), when we can also make library projects build on Windows without a remote connection.

Note: if a library project is referenced from an executable project, it's not executed remotely even when it would break the project (see #19519 (comment)), so this would also fix that case.

Note 2: this would also allow library projects to build on Linux (or any other non-macOS platform).