Feature/add create object service (#476)

Added BACnet CreateObject and DeleteObject services

* refactored codec for BACnetPropertyValue into bacapp module
* added unit tests for BACnetPropertyValue
* refactored COV and Events to use BACnetPropertyValue codec API
* added unit tests for COV
* added overrun safe decoders for tag numbers and boolean context
* added unit tests and codecs for CreateObject and DeleteObject services
* added APDU service handers and senders for CreateObject and DeleteObject services
* added command line apps bacco and bacdo for CreateObject and DeleteObject services
* added CreateObject and DeleteObject service handling in example server app and device object
* added new BACnetRejectReason, Error Class, and BACnetAbortReason enumerations and conversions

---------

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

src/bacnet/basic/object/device.h

@@ -34,6 +34,8 @@
 #include "bacnet/bacnet_stack_exports.h"
 #include "bacnet/bacdef.h"
 #include "bacnet/bacenum.h"
+#include "bacnet/create_object.h"
+#include "bacnet/delete_object.h"
 #include "bacnet/list_element.h"
 #include "bacnet/wp.h"
 #include "bacnet/rd.h"
@@ -168,6 +170,8 @@ typedef struct object_functions {
     object_intrinsic_reporting_function Object_Intrinsic_Reporting;
     list_element_function Object_Add_List_Element;
     list_element_function Object_Remove_List_Element;
+    create_object_function Object_Create;
+    delete_object_function Object_Delete;
 } object_functions_t;
 
 /* String Lengths - excluding any nul terminator */
@@ -316,6 +320,13 @@ extern "C" {
         BACNET_ARRAY_INDEX array_index, 
         uint8_t *apdu);
 
+    BACNET_STACK_EXPORT
+    bool Device_Create_Object(
+        BACNET_CREATE_OBJECT_DATA *data);
+    BACNET_STACK_EXPORT
+    bool Device_Delete_Object(
+        BACNET_DELETE_OBJECT_DATA *data);
+
     BACNET_STACK_EXPORT
     unsigned Device_Count(
         void);