[C++] Build and run full test suite in Appveyor

[asfimport]

Reporter: Wes McKinney / @wesm
Assignee: Max Risuhin / @maxhora

Related issues:

• [C++] Arrow dynamic libraries are missed on run of unit tests on Windows (Blocked)
• Arrow 0.3 release (blocks)
• [C++] Build Arrow on Windows with dynamically linked boost (is blocked by)

_{Note: This issue was originally created as ARROW-687. Please see the migration documentation for further details.}

[asfimport]

Wes McKinney / @wesm:
This is done in 15b874e. thanks!