Implementation of EPIRB receiver (#2754)

* Implementation of EPIRB receiver
* Baseband processing of EPIRB signal
* UI to ddecode and display EPIRB message with display on a map
* External application
* External proc element
* Delete CLAUDE.md

firmware/common/message.hpp

@@ -135,6 +135,7 @@ class Message {
         NoaaAptRxStatusData = 78,
         NoaaAptRxImageData = 79,
         FSKPacket = 80,
+        EPIRBPacket = 81,
         MAX
     };
 
@@ -339,6 +340,17 @@ class AISPacketMessage : public Message {
     baseband::Packet packet;
 };
 
+class EPIRBPacketMessage : public Message {
+   public:
+    constexpr EPIRBPacketMessage(
+        const baseband::Packet& packet)
+        : Message{ID::EPIRBPacket},
+          packet{packet} {
+    }
+
+    baseband::Packet packet;
+};
+
 class TPMSPacketMessage : public Message {
    public:
     constexpr TPMSPacketMessage(