1. Added new file s_wpm.c (Send_Write_Property_Multiple_Request_Data)

2. Changed file wpm.h (new struct added BACNET_WRITE_ACCESS_DATA, declaration for wpm_encode_apdu added)
3. Changed file wpm.c (definition added for wpm_encode_apdu)
4. client.h file updated with declaration for Send_Write_Property_Multiple_Request_Data

Thank you for the contribution, Daniel Blazevic!

bacnet-stack/lib/Makefile

@@ -122,6 +122,7 @@ HANDLER_SRC = \
 	$(BACNET_HANDLER)/s_uevent.c  \
 	$(BACNET_HANDLER)/s_whohas.c \
 	$(BACNET_HANDLER)/s_whois.c  \
+	$(BACNET_HANDLER)/s_wpm.c  \
 	$(BACNET_HANDLER)/s_upt.c \
 	$(BACNET_HANDLER)/s_wp.c
 

bacnet-stack/lib/makefile.b32

@@ -125,6 +125,7 @@ HANDLER_SRC = \
 	$(BACNET_HANDLER)\s_uevent.c \
 	$(BACNET_HANDLER)\s_whohas.c \
 	$(BACNET_HANDLER)\s_whois.c  \
+	$(BACNET_HANDLER)\s_wpm.c  \
 	$(BACNET_HANDLER)\s_ptransfer.c  \
 	$(BACNET_HANDLER)\h_upt.c  \
 	$(BACNET_HANDLER)\h_pt.c  \