SubGhz: Oregon v2.1 decoder (#1678)

* Oregon v2.1 decoder
* Refactor FSM to switch
* Refactor headers
* Format strings
* Unit tests of oregon2
* Cleanups
* Add oregon2 raw data to random_test_raw.sub
* Adjust count of packets detected on random test
* Format sources

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

lib/subghz/protocols/registry.h

@@ -36,6 +36,7 @@
 #include "magellen.h"
 #include "intertechno_v3.h"
 #include "clemsa.h"
+#include "oregon2.h"
 
 /**
  * Registration by name SubGhzProtocol.