[FL-2787] SubGhz: add protocol Clemsa, fix decoder BETT (#1696)

* SubGhz: add protocol Clemsa
* SubGhz: fix decoder BETT protocol

Co-authored-by: あく <alleteam@gmail.com>

lib/subghz/protocols/registry.c

@@ -12,6 +12,7 @@ const SubGhzProtocol* subghz_protocol_registry[] = {
     &subghz_protocol_chamb_code,    &subghz_protocol_power_smart, &subghz_protocol_marantec,
     &subghz_protocol_bett,          &subghz_protocol_doitrand,    &subghz_protocol_phoenix_v2,
     &subghz_protocol_honeywell_wdb, &subghz_protocol_magellen,    &subghz_protocol_intertechno_v3,
+    &subghz_protocol_clemsa
 
 };