Issue 187 enable skipped ztest suites (#189)

* Fix some ztests that were skipped

* Expose bacapp_same_value()

* Fix bacapp, ptransfer tests

* Fix bugs in Load_Control object & tests

* refactor days functions from datetime module

* fix legacy ctests

* Add bacnet/basic/sys/days.[ch] to Zephyr build

* Update ztest to match from Zephyr v2.6.0; update ringbuf, datetime to build

* Fixup ztest test for object/acc

* Fix bvlc_address_from_ascii; enable/fix bvlc test

* Comment cleanup

* test/bacnet/basic/object/lc partially enabled

* Fix bacapp_decode_data_len return status on erroneous input

* fix ztest include fatal error

* fix ztest strsignal reference fatal error

* fix zassert_mem_equal reference syntax error

* fix zassert_mem_equal reference syntax error

Co-authored-by: Gregory Shue <gregory.shue@legrand.us>
Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

src/bacnet/basic/object/objects.c

@@ -32,6 +32,7 @@
  -------------------------------------------
 ####COPYRIGHTEND####*/
 
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -100,8 +101,9 @@ OBJECT_DEVICE_T *objects_device_new(uint32_t device_instance)
     return pDevice;
 }
 
-OBJECT_DEVICE_T *objects_device_delete(int index)
+bool objects_device_delete(int index)
 {
+    bool result = false;
     OBJECT_DEVICE_T *pDevice = NULL;
     BACNET_OBJECT_ID *pObject;
 
@@ -121,7 +123,8 @@ OBJECT_DEVICE_T *objects_device_delete(int index)
                 Keylist_Delete(pDevice->Object_List);
             }
             free(pDevice);
+	    result = true;
         }
     }
-    return pDevice;
+    return result;
 }