Feature/write property type check refactor (#182)

* refactor write-property tag check

* modify ports objects to use write-property tag check API

* modify example objects to use write-property tag check API

* Fix object unit test builds

* Fix and run unit ztests via CMake

* Enable unit testing on Travis CI

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

test/bacnet/basic/object/ms-input/src/main.c

@@ -11,6 +11,19 @@
 #include <ztest.h>
 #include <bacnet/basic/object/ms-input.h>
 
+/**
+ * stub
+ */
+bool Device_Valid_Object_Name(BACNET_CHARACTER_STRING *object_name,
+    BACNET_OBJECT_TYPE *object_type,
+    uint32_t *object_instance)
+{
+    (void)object_name;
+    (void)object_type;
+    (void)object_instance;
+    return false;
+}
+
 /**
  * @addtogroup bacnet_tests
  * @{