Initial commit of a simple OpenOLT simulator

make openoltsim
./build/openoltsim

Openoltsim is meant to simulate an OLT running the OpenOLT driver.
Currently, it only sends the the "olt up" indication allowing
voltha pre-provision/enable commands to connect to openoltsim.

Change-Id: I95910657d269e37f4e4943d2b91f2780ecd8fd08
diff --git a/openoltsim/main.cc b/openoltsim/main.cc
new file mode 100644
index 0000000..652378e
--- /dev/null
+++ b/openoltsim/main.cc
@@ -0,0 +1,50 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <iostream>
+#include <unistd.h>
+#include <pthread.h>
+
+#include "server.h"
+#include "core.h"
+#include "state.h"
+
+void* RunSim(void *) {
+    while (!state::is_connected()) {
+        sleep(5);
+    }
+
+    // Send Olt up indication
+    {
+        openolt::Indication ind;
+        openolt::OltIndication* olt_ind = new openolt::OltIndication;
+        olt_ind->set_oper_state("up");
+        ind.set_allocated_olt_ind(olt_ind);
+        std::cout << "olt indication, oper_state:" << ind.olt_ind().oper_state() << std::endl;
+        oltIndQ.push(ind);
+    }
+
+    // TODO - Add interface and onu indication events
+}
+
+int main(int argc, char** argv) {
+    pthread_t simThread;
+
+    pthread_create(&simThread, NULL, RunSim, NULL);
+    RunServer();
+
+    return 0;
+}