[FL-1946] RPC App launch (#758)

* RPC: Add App start, lock status
 - Add RPC commands Application start, lock status acquiring.
 - Write tests for RPC App system.
 - Replace Unit Tests application with CLI command. This is for CI needs and for tests that run application.
* Fix NDEBUG build
* Update PB submodule
* Fix RPC print (ENABLE DEBUG PRINT!)
* snprintf -> string_t
* Fix Hard Fault (early mutex free)
* printf -> string_t, format, enable tests
* Update submodule: protobuf
* Applications: rollback unit test naming scheme.

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

lib/subghz/protocols/subghz_protocol_came_twee.c

@@ -56,7 +56,7 @@ void subghz_protocol_came_twee_free(SubGhzProtocolCameTwee* instance) {
 LevelDuration subghz_protocol_came_twee_add_duration_to_upload(
     SubGhzProtocolCameTwee* instance,
     ManchesterEncoderResult result) {
-    LevelDuration data;
+    LevelDuration data = {.duration = 0, .level = 0};
     switch(result) {
     case ManchesterEncoderResultShortLow:
         data.duration = instance->common.te_short;