By default, put executables into $CMAKE_BINARY_DIR/bin and libraries
into $CMAKE_BINARY_DIR/lib.  Test executables still go into
$CMAKE_BINARY_DIR/test.

This patch's main purpose is to consolidate repetitive code. It doesn't
actually move anything except 'libcmocka.a'.

v2: [Emil]
 - Move gl_basic_test (dynamic linked against waffle) to bin, or the
test will fail on Windows. Due to the DLL being in a different folder.

Cc: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>