host: Updated and moved Windows C99 compatibility headers

Visual Studio 2013 now includes these headers, so they have
been moved as not to conflict (even though they are intended to
be equivalent.)

Our stdbool.h was providing an incorrect typedef; sizeof(bool)
should have been 1, not sizeof(int).

Per http://msdn.microsoft.com/en-us/library/tf4dy80a.aspx:
    "In Visual C++4.2, the Standard C++ header files contained a typedef
    that equated bool with int. In Visual C++ 5.0 and later, bool is
    implemented as a built-in type with a size of 1 byte. That means
    that for Visual C++ 4.2, a call of sizeof(bool) yields 4, while in
    Visual C++ 5.0 and later, the same call yields 1. This can cause
    memory corruption problems if you have defined structure members of
    type bool in Visual C++ 4.2 and are mixing object files (OBJ) and/or
    DLLs built with the 4.2 and 5.0 or later compilers."
libbladeRF: Moved tests out of libbladeRF/ directory

Because the libbladeRF tests were nested under the libbladeRF build,
they were being built with the include paths, library paths,
etc.  used when building libbladeRF.

This was masking build issues that libbladeRF users might experience,
such as MS Visual Studio 12 and earlier failing due to a lack of a
stdbool.h header. (We now include our stdbool.h, and have an option to
disable our C99 compat includes.)

Therefore, these tests have been moved in the build hierarchy to avoid
cross-pollination of the libbladeRF build environment and the tests'
build environment. This should better represent users building against
libbladeRF, and hopefully bring issues to light earlier.
libbladeRF: Do not include <stdbool.h> for C++ code in API header

This is unneccessary and causes build issues when building C++ programs
in Visual Studio 2012 and earlier.
libbladeRF: Added C++ build test

This program is just intended to ensure a simple C++ program using
libbladeRF builds (without requiring anything from host/common).
libbladeRF: Removed unnecessary -lm and math.h from example program