fix(core): windows filePaths should be handled in findProjectForPath

[Coly010]

Current Behavior

Passing a windows file path to findProjectForPath errors out as Project Mappings are set up with UNIX style paths

Expected Behavior

Passing Unix or Win style file paths should still return correct project.

Related Issue(s)

Fixes nrwl/nx-labs#291

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✅ Successfully ran 8 targets

• nx affected -t e2e-macos --parallel=1 --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1
• nx affected --target=e2e --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1 --parallel=1
• nx run-many -t check-imports check-commit check-lock-files depcheck check-codeowners documentation --parallel=1 --no-dte
• nx affected --target=build --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1 --parallel=3
• nx affected --target=lint --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1 --parallel=3
• nx affected --target=test --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1 --parallel=1
• nx-cloud record -- nx format:check --base=2c47bba937462dbd702f589ea25dd15283cff633 --head=926bd1415de7d69b0c7e57ebabf01ea4f799fae1
• nx documentation --no-dte

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