[FL-3618] Infrared remote button index support (#3180)

* Do not load all signals at once (Draft)
* Minor cleanup
* Refactor remote renaming
* Improve function signatures
* Rename infrared_remote functions
* Optimise signal loading
* Implement adding signals to remote
* Add read_name() method
* Deprecate a function
* Partially implement deleting signals (draft)
* Use m-array instead of m-list for signal name directory
* Use plain C strings instead of furi_string
* Implement deleting signals
* Implement deleting signals via generalised callback
* Implement renaming signals
* Rename some types
* Some more renaming
* Remove unused type
* Implement inserting signals (internal use)
* Improve InfraredMoveView
* Send an event to move a signal
* Remove unused type
* Implement moving signals
* Implement creating new remotes with one signal
* Un-deprecate and rename a function
* Add InfraredRemote API docs
* Add InfraredSignal API docs
* Better error messages
* Show progress pop-up when moving buttons in a remote
* Copy labels to the InfraredMoveView to avoid pointer invalidation
* Improve file selection scene
* Show progress pop-up when renaming buttons in a remote
* Refactor a scene
* Show progress when deleting a button from remote
* Use a random name for temp files
* Add docs to infrared_brute_force.h
* Rename Infrared type to InfraredApp
* Add docs to infrared_app_i.h
* Deliver event data via a callback
* Bundle event data together with event type
* Change DataExchange behaviour
* Adapt RPC debug app to new API
* Remove rogue output
* Add Doxygen comments to rpc_app.h
* Simplify rpc_app.c code
* Remove superflous parameter
* Do not allocate protobuf messages on the stack
* Fix GetError response
* Support for button indices
* Comment out shallow submodules
* Fix F18 api
* Fix logical error and add more debug output
* fbt: testing unshallow for protobuf
* github: lint&checks: unshallow prior to checks
* Fix a TODO
* github: do not unshallow the unshallowed
* fbt: assets: only attempt to unshallow if cannot describe
* Do not use the name when loading a signal by index (duh)
* Simplify loading infrared signals by name
* Sync with protobuf release
* Infrared: use compact furi_crash macros

Co-authored-by: hedger <hedger@nanode.su>
Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

applications/main/infrared/infrared_signal.h

@@ -162,7 +162,26 @@ bool infrared_signal_read_name(FlipperFormat* ff, FuriString* name);
  * @param[in] name pointer to a zero-terminated string containing the requested signal name.
  * @returns true if a signal was found and successfully read, false otherwise (e.g. the signal was not found).
  */
-bool infrared_signal_search_and_read(InfraredSignal* signal, FlipperFormat* ff, const char* name);
+bool infrared_signal_search_by_name_and_read(
+    InfraredSignal* signal,
+    FlipperFormat* ff,
+    const char* name);
+
+/**
+ * @brief Read a signal with a particular index from a FlipperFormat file into an InfraredSignal instance.
+ *
+ * This function will look for a signal with the given index and if found, attempt to read it.
+ * Same considerations apply as to infrared_signal_read().
+ *
+ * @param[in,out] signal pointer to the instance to be read into.
+ * @param[in,out] ff pointer to the FlipperFormat file instance to read from.
+ * @param[in] index the requested signal index.
+ * @returns true if a signal was found and successfully read, false otherwise (e.g. the signal was not found).
+ */
+bool infrared_signal_search_by_index_and_read(
+    InfraredSignal* signal,
+    FlipperFormat* ff,
+    size_t index);
 
 /**
  * @brief Save a signal contained in an InfraredSignal instance to a FlipperFormat file.