Bugfix/double float promotion warnings (#605)

* Fixed compile warnings from double-float promotions.

* Changed zephyr compile to suppress deprecation warnings

* Fixed CreateObject API return value in many objects header files

* Changed zephyr build defines as strdup is no longer required for log print of strings

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

@@ -46,6 +46,7 @@ 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}/cov.c
     ${BACNET_SRC}/memcopy.c

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

@@ -46,6 +46,7 @@ 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}/hostnport.c
     ${BACNET_SRC}/dailyschedule.c