Fixed CreateObject service list-of-initial-values encoding and decoding. (#1199)

Fixes the CreateObject service list-of-initial-values encoding and decoding by refactoring the data structure to be similar to WriteProperty. The implementation changes from using a linked list of property values to using a flat buffer approach with delayed decoding.

Changes:

* Refactored BACNET_CREATE_OBJECT_DATA structure to use an application_data buffer instead of a linked list for initial values
* Added a new create_object_process() and create_object_initializer_list_process() functions to centralize object creation logic and error reporting
* Updated all device implementations to use the new centralized creation functions
* Enhanced the create-object example application to support command-line specification of initial property values
* Added comprehensive test coverage for the new encoding/decoding and processing functions

test/bacnet/basic/object/device/CMakeLists.txt

@@ -92,7 +92,9 @@ add_executable(${PROJECT_NAME}
     ${SRC_DIR}/bacnet/datalink/bvlc.c
     ${SRC_DIR}/bacnet/datalink/bvlc6.c
     ${SRC_DIR}/bacnet/cov.c
+    ${SRC_DIR}/bacnet/create_object.c
     ${SRC_DIR}/bacnet/datetime.c
+    ${SRC_DIR}/bacnet/delete_object.c
     ${SRC_DIR}/bacnet/dcc.c
     ${SRC_DIR}/bacnet/indtext.c
     ${SRC_DIR}/bacnet/hostnport.c