Add core stack headers into bacdef.h and cleanup includes. (#602)

* Added dependent BACnet stack headers into bacdef.h file.

* Changed bacdef.h and other stack includes in c/h files to have a common pattern.

* Moved bits.h, bytes.h, and bacnet_stack_exports.h under bacnet/basic/sys/ folder.

src/bacnet/basic/npdu/h_npdu.c

@@ -24,12 +24,12 @@
  *********************************************************************/
 #include <stdbool.h>
 #include <stdint.h>
-#include "bacnet/bacaddr.h"
+/* BACnet Stack defines - first */
 #include "bacnet/bacdef.h"
+/* BACnet Stack API */
+#include "bacnet/bacaddr.h"
 #include "bacnet/bacdcode.h"
 #include "bacnet/bacint.h"
-#include "bacnet/bacenum.h"
-#include "bacnet/bits.h"
 #include "bacnet/npdu.h"
 #include "bacnet/apdu.h"
 #include "bacnet/basic/services.h"

src/bacnet/basic/npdu/h_npdu.h

@@ -32,9 +32,9 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include "bacnet/bacdef.h"  /* Must be before all other bacnet *.h files */
-#include "bacnet/bacnet_stack_exports.h"
-#include "bacnet/bacenum.h"
+/* BACnet Stack defines - first */
+#include "bacnet/bacdef.h"
+/* BACnet Stack API */
 #include "bacnet/apdu.h"
 #include "bacnet/npdu.h"
 

src/bacnet/basic/npdu/h_routed_npdu.c

@@ -27,11 +27,11 @@
 
 #include <stdbool.h>
 #include <stdint.h>
+/* BACnet Stack defines - first */
 #include "bacnet/bacdef.h"
+/* BACnet Stack API */
 #include "bacnet/bacdcode.h"
 #include "bacnet/bacint.h"
-#include "bacnet/bacenum.h"
-#include "bacnet/bits.h"
 #include "bacnet/npdu.h"
 #include "bacnet/apdu.h"
 #include "bacnet/bactext.h"

src/bacnet/basic/npdu/h_routed_npdu.h

@@ -32,9 +32,9 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include "bacnet/bacdef.h"  /* Must be before all other bacnet *.h files */
-#include "bacnet/bacnet_stack_exports.h"
-#include "bacnet/bacenum.h"
+/* BACnet Stack defines - first */
+#include "bacnet/bacdef.h"
+/* BACnet Stack API */
 #include "bacnet/apdu.h"
 
 #ifdef __cplusplus

src/bacnet/basic/npdu/s_router.c

@@ -26,7 +26,6 @@
 #include <stdint.h>
 #include <errno.h>
 #include <string.h>
-#include "bacnet/config.h"
 #include "bacnet/bacdef.h"
 #include "bacnet/bacdcode.h"
 #include "bacnet/bacaddr.h"

src/bacnet/basic/npdu/s_router.h

@@ -32,10 +32,10 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include "bacnet/bacdef.h"  /* Must be before all other bacnet *.h files */
-#include "bacnet/bacnet_stack_exports.h"
+/* BACnet Stack defines - first */
+#include "bacnet/bacdef.h"
+/* BACnet Stack API */
 #include "bacnet/bacapp.h"
-#include "bacnet/bacenum.h"
 #include "bacnet/apdu.h"
 
 #ifdef __cplusplus