Feature/add create object service (#476)

Added BACnet CreateObject and DeleteObject services

* refactored codec for BACnetPropertyValue into bacapp module
* added unit tests for BACnetPropertyValue
* refactored COV and Events to use BACnetPropertyValue codec API
* added unit tests for COV
* added overrun safe decoders for tag numbers and boolean context
* added unit tests and codecs for CreateObject and DeleteObject services
* added APDU service handers and senders for CreateObject and DeleteObject services
* added command line apps bacco and bacdo for CreateObject and DeleteObject services
* added CreateObject and DeleteObject service handling in example server app and device object
* added new BACnetRejectReason, Error Class, and BACnetAbortReason enumerations and conversions

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

test/CMakeLists.txt

@@ -53,8 +53,10 @@ list(APPEND testdirs
   bacnet/bacstr
   bacnet/bactimevalue
   bacnet/cov
+  bacnet/create_object
   bacnet/datetime
   bacnet/dcc
+  bacnet/delete_object
   bacnet/event
   bacnet/getalarm
   bacnet/getevent
@@ -62,6 +64,7 @@ list(APPEND testdirs
   bacnet/ihave
   bacnet/indtext
   bacnet/lighting
+  bacnet/list_element
   bacnet/lso
   bacnet/memcopy
   bacnet/npdu