Disable VS 2013 duplicated file warnings

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extra : rebase_source : 5d1a93b7a451e44493f179f6b2f81709d44732e6
Add getLibraryDirectories() to tool adapters
- use throughout to avoid flag duplication in VS projects with external tools

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extra : rebase_source : 1c7bc71409943c1e0d84361cbb3f06cd8fc71679