Add functions to enable/disable debug logging (#280)

* Add "bip_debug_disable()"

* Add "bvlc_debug_disable()"

* Add setters for BIP_DL_Debug (BBMD registration debug logging)

src/bacnet/basic/bbmd/h_bbmd.c

@@ -102,6 +102,14 @@ void bvlc_debug_enable(void)
     BVLC_Debug = true;
 }
 
+/**
+ * @brief Disable debug printing of BACnet/IPv4 BBMD
+ */
+void bvlc_debug_disable(void)
+{
+    BVLC_Debug = true;
+}
+
 /**
  * @brief Print the IPv4 address with debug info for this module
  * @param str - debug info string