Move supported extensions lists out of logger

Keeping this next to the supported extensions objects makes it easier to
maintain.

src/common/serialization/clap/host.cpp

@@ -17,6 +17,8 @@
 #include "host.h"
 
 #include <clap/ext/audio-ports.h>
+#include <clap/ext/note-ports.h>
+#include <clap/ext/params.h>
 
 namespace clap {
 namespace host {
@@ -28,5 +30,12 @@ Host::Host(const clap_host_t& original)
       url(original.url ? std::optional(original.url) : std::nullopt),
       version((assert(original.version), original.version)) {}
 
+std::array<std::pair<bool, const char*>, 3> SupportedHostExtensions::list()
+    const noexcept {
+    return {std::pair(supports_audio_ports, CLAP_EXT_AUDIO_PORTS),
+            std::pair(supports_note_ports, CLAP_EXT_NOTE_PORTS),
+            std::pair(supports_params, CLAP_EXT_PARAMS)};
+}
+
 }  // namespace host
 }  // namespace clap