npgsql - Npgsql2: Added NUnit test cases to vs.net solution files.

Log Message:
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Added NUnit test cases to vs.net solution files. Thanks Tao Wang for patches.

Modified Files:
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    Npgsql2/src:
        Npgsql.sln (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql.sln.diff?r1=1.1&r2=1.2)
        Npgsql2008.sln (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql2008.sln.diff?r1=1.1&r2=1.2)

Added Files:
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    Npgsql2/testsuite/noninteractive/NUnit20:
        App.config (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/App.config?rev=1.1&content-type=text/x-cvsweb-markup)
        NpgsqlTests2008.csproj (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/NpgsqlTests2008.csproj?rev=1.1&content-type=text/x-cvsweb-markup)
        NpgsqlTests.csproj (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/testsuite/noninteractive/NUnit20/NpgsqlTests.csproj?rev=1.1&content-type=text/x-cvsweb-markup)