[FL-2279] IR doxygen, rename irda -> infrared (#1010)

* IR: Doxygen docs, some rename
* Rename irda -> infrared
* Rollback collateral renames

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

applications/infrared/helpers/infrared_parser.h

@@ -0,0 +1,48 @@
+/**
+  * @file infrared_parser.h
+  * Infrared: Helper file for conversion Flipper File Format
+  *     to Infrared signal class, and backwards
+  */
+#pragma once
+
+#include "../infrared_app_signal.h"
+#include <flipper_format/flipper_format.h>
+#include <string>
+
+/** Save Infrared signal into file
+ *
+ * @param ff - Flipper File Format instance
+ * @param signal - Infrared signal to save
+ * @param name - name for saved signal. Every
+ *      signal on disk has name.
+ */
+bool infrared_parser_save_signal(
+    FlipperFormat* ff,
+    const InfraredAppSignal& signal,
+    const std::string& name);
+
+/** Read Infrared signal from file
+ *
+ * @param ff - Flipper File Format instance
+ * @param signal - Infrared signal to read to
+ * @param name - name for saved signal. Every
+ *      signal in file has name.
+ */
+bool infrared_parser_read_signal(FlipperFormat* ff, InfraredAppSignal& signal, std::string& name);
+
+/** Validate parsed signal
+ *
+ * @signal - signal to validate
+ * @retval true if valid, false otherwise
+ */
+bool infrared_parser_is_parsed_signal_valid(const InfraredMessage* signal);
+
+/** Validate raw signal
+ *
+ * @signal - signal to validate
+ * @retval true if valid, false otherwise
+ */
+bool infrared_parser_is_raw_signal_valid(
+    uint32_t frequency,
+    float duty_cycle,
+    uint32_t timings_cnt);