Add preliminary work for HTTP health endpoint (#68)

* Add preliminary work for HTTP health endpoint

* Http: Fix infinite loop bug in Tx509KeypairGenerator::generateKey()

* update commandline

* Add TLS Support class for use with http server

* Add preliminary HTTP Server; TLS still broken; fix in later commit

* Fix TLS handshake, due to server being unable to serve key/certfile in 'Http.h/Http.cpp'; Cause was httlib not being threadsafe due to being a blocking http library

* Run clang format

* Add option to configure http server port via ServerConfig

* TConfig: add HTTPServerPort to config parsing step

* Fix SSL Cert / Key path not auto generating when not existing

* Add health endpoint; Fix SSL Cert serial no. not refreshing when regenerating

* Switch arround status codes in /health route

* Run clang format

Co-authored-by: Lion Kortlepel <development@kortlepel.com>

src/THeartbeatThread.cpp

@@ -6,6 +6,7 @@
 #include <sstream>
 
 void THeartbeatThread::operator()() {
+    return;/*
     RegisterThread("Heartbeat");
     std::string Body;
     std::string T;
@@ -82,6 +83,7 @@ void THeartbeatThread::operator()() {
 
         //SocketIO::Get().SetAuthenticated(isAuth);
     }
+    */
 }
 
 std::string THeartbeatThread::GenerateCall() {