Added build file library. Use (u) at home to manage build files everywhere.

Example:

    Score manager - build library

        1: red-example-score-segment-01.ly (Red Example Score)
        2: red-example-score-segment-02.ly (Red Example Score)
        3: red-example-score-segment-03.ly (Red Example Score)
        4: aracilik-covers-printers-bundle.pdf (Aracılık)
        5: aracilik-covers-printers-bundle.tex (Aracılık)
        6: aracilik-score-back-cover.pdf (Aracılık)
        7: aracilik-score-back-cover.tex (Aracılık)
        8: aracilik-score-front-cover.indd (Aracılık)
        9: aracilik-score-front-cover.pdf (Aracılık)
        10: cama-score-back-cover.pdf (Aracılık)
        11: cama-score-back-cover.tex (Aracılık)
        12: cama-score-front-cover.indd (Aracılık)
        13: cama-score-front-cover.pdf (Aracılık)
        14: camdan-score-back-cover.pdf (Aracılık)
        15: camdan-score-back-cover.tex (Aracılık)
        16: camdan-score-front-cover.indd (Aracılık)
        17: camdan-score-front-cover.pdf (Aracılık)
        18: dessous-score-back-cover.pdf (Aracılık)
        19: dessous-score-back-cover.tex (Aracılık)
        20: dessous-score-front-cover.indd (Aracılık)

        < ... snip ... >

        135: traiettorie-segment-insert-2.pdf (Traiettorie inargentate)
        136: traiettorie-segment-insert-3.ly (Traiettorie inargentate)
        137: traiettorie-segment-insert-3.pdf (Traiettorie inargentate)
        138: traiettorie-segment-insert-4.ly (Traiettorie inargentate)
        139: traiettorie-segment-insert-4.pdf (Traiettorie inargentate)
        140: traiettorie-segment-insert-5.ly (Traiettorie inargentate)
        141: traiettorie-segment-insert-5.pdf (Traiettorie inargentate)
        142: traiettorie-segment-rainfall.ly (Traiettorie inargentate)
        143: traiettorie-segment-rainfall.pdf (Traiettorie inargentate)
        144: traiettorie-segment-sand.ly (Traiettorie inargentate)
        145: traiettorie-segment-sand.pdf (Traiettorie inargentate)

        files - copy (cp)
        files - new (new)
        files - remove (rm)
        files - rename (ren)

    > q