[FL-1369, FL-1397, FL-1420] IRDA + SDcard (#513)

* Add saving to SD-Card (not ready yet)
* Add saving to SD-card (done)
* Select previous menu item
* Fix central button
* Fix current_button
* Refactoring
* Add notifications
* [FL-1417] Add IRDA CLI
  CLI commands:
  1) ir_rx
  Receives all IR-trafic, decodes and prints result to stdout
  2) ir_tx <protocol> <address> <command>
  Transmits IR-signal. Address and command are hex-formatted
* Fix BUG with random memory corruption at random time in random place in random universe in random unknown space and time forever amen
* Fix submenu set_selected_item
* Bring protocol order back
* Add TODO sdcard check

firmware/targets/api-hal-include/api-hal-irda.h

@@ -49,6 +49,12 @@ void api_hal_irda_pwm_set(float duty_cycle, float freq);
  */
 void api_hal_irda_pwm_stop();
 
+/**
+ * Check if IRDA is in use now.
+ * @return  false - IRDA is busy, true otherwise.
+ */
+bool api_hal_irda_rx_irq_is_busy(void);
+
 #ifdef __cplusplus
 }
 #endif

firmware/targets/f5/api-hal/api-hal-irda.c

@@ -97,6 +97,10 @@ void api_hal_irda_rx_irq_deinit(void) {
     LL_TIM_CC_DisableChannel(TIM2, LL_TIM_CHANNEL_CH2);
 }
 
+bool api_hal_irda_rx_irq_is_busy(void) {
+    return (LL_TIM_IsEnabledIT_CC1(TIM2) || LL_TIM_IsEnabledIT_CC2(TIM2));
+}
+
 void api_hal_irda_rx_irq_set_callback(TimerISRCallback callback, void *ctx) {
     furi_check(callback);
 

firmware/targets/f6/api-hal/api-hal-irda.c

@@ -97,6 +97,10 @@ void api_hal_irda_rx_irq_deinit(void) {
     LL_TIM_CC_DisableChannel(TIM2, LL_TIM_CHANNEL_CH2);
 }
 
+bool api_hal_irda_rx_irq_is_busy(void) {
+    return (LL_TIM_IsEnabledIT_CC1(TIM2) || LL_TIM_IsEnabledIT_CC2(TIM2));
+}
+
 void api_hal_irda_rx_irq_set_callback(TimerISRCallback callback, void *ctx) {
     furi_check(callback);