- make a template class for API Server

- Skip a lot of duplicate code
- add a hexDump output - might come in handy
- refactor directory names
- remove unused debugOut that was generating template errors

src/mesh/api/ServerAPI.cpp

@@ -0,0 +1,67 @@
+#include "ServerAPI.h"
+#include "configuration.h"
+#include <Arduino.h>
+
+template<typename T>
+ServerAPI<T>::ServerAPI(T &_client) : StreamAPI(&client), concurrency::OSThread("ServerAPI"), client(_client)
+{
+    LOG_INFO("Incoming wifi connection\n");
+}
+
+template<typename T>
+ServerAPI<T>::~ServerAPI()
+{
+    client.stop();
+}
+
+template<typename T>
+void ServerAPI<T>::close()
+{
+    client.stop(); // drop tcp connection
+    StreamAPI::close();
+}
+
+/// Check the current underlying physical link to see if the client is currently connected
+template<typename T>
+bool ServerAPI<T>::checkIsConnected()
+{
+    return client.connected();
+}
+
+template<class T>
+int32_t ServerAPI<T>::runOnce()
+{
+    if (client.connected()) {
+        return StreamAPI::runOncePart();
+    } else {
+        LOG_INFO("Client dropped connection, suspending API service\n");
+        enabled = false; // we no longer need to run
+        return 0;
+    }
+}
+
+template<class T, class U>
+APIServerPort<T, U>::APIServerPort(int port) : U(port), concurrency::OSThread("ApiServer") {}
+
+template<class T, class U>
+void APIServerPort<T, U>::init()
+{
+    U::begin();
+}
+
+template<class T, class U>
+int32_t APIServerPort<T, U>::runOnce()
+{
+    auto client = U::available();
+    if (client) {
+        // Close any previous connection (see FIXME in header file)
+        if (openAPI) {
+            LOG_INFO("Force closing previous TCP connection\n");
+            delete openAPI;
+        }
+
+        openAPI = new T(client);
+    }
+
+    return 100; // only check occasionally for incoming connections
+}