windows: define csp_bin_sem_t and csp_mutex_buffer_t
windows: define csp_bin_sem_t and csp_mutex_buffer_t

Add typedefs for csp_bin_sem_t and csp_mutex_buffer_t.  These are
actually not used for windows but need them for function prototypes.

Signed-off-by: Yasushi SHOJI <afa9ca3be149447780c2f7b524d61ed3d3db63f9@spacecubics.com>

libcsp/libcsp,libcsp/libcsp