Windows build fix 


VC++Files/sql/mysqld.dsp:
  Added sql_state.c to wrk space
include/mysql_com.h:
  Windows build fix (mismatch declaration of my_bool and bool from defination)
include/thr_alarm.h:
  Windows build fix
libmysql/libmysql.c:
  Fix for mysql_list_fields & reset stmt buffers from stmt_free_result
tests/client_test.c:
  Updated test for DEFAULT value for mysql_list_fields()
  New tests for mysql_stmt_free_result()