slightly improved ads-b receiver module (#2649)

* slightly improved ads-b receiver module:
* fix Heading, Speed and Vrate decoders
* decode more ModeS messages
* log all ModeS messages (except DF11)
* fix formatting (clang-style); advice on data alignment taken into account
* ADS-B module: convert Indicated AirSpeed to True AirSpeed if altitute is known
* ADS-B rx module: replacing floating point with integer arithmetic

firmware/baseband/proc_adsbrx.cpp

@@ -73,13 +73,8 @@ void ADSBRXProcessor::execute(const buffer_c8_t& buffer) {
 
                     // Perform additional check on the first byte.
                     if (bit_count == 8) {
-                        // Abandon all frames that aren't DF17 or DF18 extended squitters.
-                        uint8_t df = (byte >> 3);
-                        if (df != 17 && df != 18) {
-                            decoding = false;
-                            bit = (prev_mag > mag) ? 1 : 0;
-                            frame.clear();
-                        }
+                        // try to receive all frames instead
+                        msg_len = (byte & 0x80) ? 112 : 56;  // determine message len by type
                     }
                 }
             }

firmware/baseband/proc_adsbrx.hpp

@@ -40,7 +40,7 @@ class ADSBRXProcessor : public BasebandProcessor {
 
    private:
     static constexpr size_t baseband_fs = 2'000'000;
-    static constexpr size_t msg_len = 112;
+    size_t msg_len{112};
 
     ADSBFrame frame{};
     bool configured{false};