Added BACnetRecipient and BACnetAddressBinding codecs for EPICS application (#1163)

* Added BACnetRecipient and BACnetAddressBinding encoding, decoding, ASCII conversion, comparison, and copy functions.

*  Added library specific string manipulation utilities including strcmp, strncmp, stptok, and snprintf with offset functions.

* Added test/README about verification and validation testing.

test/bacnet/npdu/CMakeLists.txt

@@ -42,11 +42,13 @@ add_executable(${PROJECT_NAME}
     ${SRC_DIR}/bacnet/bacint.c
     ${SRC_DIR}/bacnet/bacreal.c
     ${SRC_DIR}/bacnet/bacstr.c
+    ${SRC_DIR}/bacnet/bactext.c
     ${SRC_DIR}/bacnet/basic/service/h_apdu.c
     ${SRC_DIR}/bacnet/basic/sys/bigend.c
     ${SRC_DIR}/bacnet/basic/sys/debug.c
     ${SRC_DIR}/bacnet/basic/tsm/tsm.c
     ${SRC_DIR}/bacnet/dcc.c
+    ${SRC_DIR}/bacnet/indtext.c
     ${SRC_DIR}/bacnet/proplist.c
     ${SRC_DIR}/bacnet/reject.c
     ${SRC_DIR}/bacnet/rp.c