Bugfix/channel-object-type-all-enabled (#1135)

* Added datetime same API for unit testing.

* Added CHANNEL_VALUE_ALL define and fixed the API integration for the additional datatypes now supported.

test/bacnet/channel_value/CMakeLists.txt

@@ -23,7 +23,8 @@ set(ZTST_DIR "${TST_DIR}/ztest/src")
 add_compile_definitions(
     BIG_ENDIAN=0
     CONFIG_ZTEST=1
-    BACAPP_ALL
+    CHANNEL_VALUE_ALL=1
+    BACAPP_ALL=1
     )
 
 include_directories(