Bugfix/bacapp deprecation fixes (#578)

* Secured bacapp_decode_application_data_safe(), bacapp_decode_application_data_len(), bacapp_decode_context_data(), bacapp_decode_known_property() for timestamp, bacapp_decode_context_data_len(), and bacapp_data_len() functions.

* Fixed Command, Credential Data Input, and Schedule objects unit test

zephyr/tests/bacnet/basic/object/netport/CMakeLists.txt

@@ -26,6 +26,8 @@ if(BOARD STREQUAL unit_testing)
   list(APPEND SOURCES
     ${BACNET_SRC_PATH}.c
     ${BACNET_TEST_PATH}/src/main.c
+    ${BACNET_TEST_PATH}/../property_test.c
+    ${BACNET_TEST_PATH}/../property_test.h
     )
 
   get_filename_component(BACNET_OBJECT_SRC ${BACNET_SRC_PATH} PATH)
@@ -46,6 +48,7 @@ if(BOARD STREQUAL unit_testing)
     ${BACNET_SRC}/bactext.c
     ${BACNET_SRC}/indtext.c
     ${BACNET_SRC}/lighting.c
+    ${BACNET_SRC}/proplist.c
     ${BACNET_SRC}/wp.c
     ${BACNET_SRC}/proplist.c
     ${BACNET_SRC}/datalink/bvlc.c