ws2_32/tests: Add SO_ERROR [set|get]sockopt tests

[Bruno Jesus]

Add tests to show that Windows allows setsockopt(SO_ERROR) which is not
supported in Unix like systems and also forbids getsockopt(SO_ERROR) with
optlen < 4 bytes which is allowed in Unix like systems.

This tests are required for bug http://bugs.winehq.org/show_bug.cgi?id=32643
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