[incubator-kie-issues-1468] Starting a project in development mode in Windows will fail if it has nested resources

[ljmotta]

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Closes/Fixes/Resolves apache/incubator-kie-issues#1468

Description:

In a Windows machine, a nested resource will have a Windows path with backslash (\). The getResourceAsStream only supports Posix paths (/). This PR adds a toPosixPath method which transform Windows paths to Posix paths, and it keeps Posix paths unchanged.

Manually tested in Windows, WSL and macOS.

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How to replicate CI configuration locally?

Build Chain tool does "simple" maven build(s), the builds are just Maven commands, but because the repositories relates and depends on each other and any change in API or class method could affect several of those repositories there is a need to use build-chain tool to handle cross repository builds and be sure that we always use latest version of the code for each repository.

build-chain tool is a build tool which can be used on command line locally or in Github Actions workflow(s), in case you need to change multiple repositories and send multiple dependent pull requests related with a change you can easily reproduce the same build by executing it on Github hosted environment or locally in your development environment. See local execution details to get more information about it.

[gitgabrio]

@yesamer IIRC you already dealt with something similar in the past 🤔

[yesamer]

@gitgabrio Yeah, but in another area I guess. And most likely this will be no the last case :V

[pefernan]

guys give me a min to take a look before merging!

[baldimir]

Just ping me when ready and I can merge @pefernan.

[pefernan]

@baldimir +1