Merge TactilityHeadless into Tactility (#263)

There currently is no practical use to have TactilityHeadless as a subproject. I'm merging it with the Tactility project.

Tactility/Source/service/wifi/Wifi.cpp

@@ -0,0 +1,24 @@
+#include "Tactility/service/wifi/Wifi.h"
+
+namespace tt::service::wifi {
+
+const char* radioStateToString(RadioState state) {
+    switch (state) {
+        using enum RadioState;
+        case OnPending:
+            return TT_STRINGIFY(OnPending);
+        case On:
+            return TT_STRINGIFY(On);
+        case ConnectionPending:
+            return TT_STRINGIFY(ConnectionPending);
+        case ConnectionActive:
+            return TT_STRINGIFY(ConnectionActive);
+        case OffPending:
+            return TT_STRINGIFY(OnPending);
+        case Off:
+            return TT_STRINGIFY(Off);
+    }
+    tt_crash("not implemented");
+}
+
+}