Refactor RF Configuration Management (#2245)

- Introduced RFConfiguration class to encapsulate RF settings and operations.
- Replaced direct usage of RFConfig structure with iRFConfig instance across multiple files.
- Updated frequency handling in actuatorSomfy, gatewayPilight, gatewayRF, and gatewayRF2 to use iRFConfig.
- Modified webUI to interact with iRFConfig for RF settings management.
- Removed deprecated RFConfig structure and related functions.
- Enhanced JSON handling for RF configuration loading and saving.
- Improved logging for RF configuration operations.

main/config_RF.h

@@ -25,11 +25,11 @@
 */
 #ifndef config_RF_h
 #define config_RF_h
+#pragma once
 
-#include "TheengsCommon.h"
+#include <rf/RFConfiguration.h>
 
 #ifdef ZgatewayRF
-extern void setupRF();
 extern void RFtoX();
 extern void XtoRF(const char* topicOri, const char* datacallback);
 extern void XtoRF(const char* topicOri, JsonObject& RFdata);
@@ -137,6 +137,9 @@ const char parameters[51][4][24] = {
 #    define DISCOVERY_TRACE_LOG(...)
 #  endif
 #endif
+
+extern RFConfiguration iRFConfig;
+
 /*-------------------RF topics & parameters----------------------*/
 //433Mhz MQTT Subjects and keys
 #define subjectMQTTtoRF              "/commands/MQTTto433"
@@ -198,13 +201,6 @@ const char parameters[51][4][24] = {
  * 4 = ZgatewayRF2
  */
 
-struct RFConfig_s {
-  float frequency;
-  int rssiThreshold;
-  int newOokThreshold;
-  int activeReceiver;
-};
-
 #define ACTIVE_NONE     -1
 #define ACTIVE_RECERROR 0
 #define ACTIVE_PILIGHT  1
@@ -224,8 +220,6 @@ struct RFConfig_s {
 #  define ACTIVE_RECEIVER ACTIVE_NONE
 #endif
 
-extern RFConfig_s RFConfig;
-
 /*-------------------CC1101 DefaultTXPower----------------------*/
 //Adjust the default TX-Power for sending radio if ZradioCC1101 is used.
 //The following settings are possible depending on the frequency band.  (-30  -20  -15  -10  -6    0    5    7    10   11   12) Default is max!