Server: Add TTYServer, a rudimentary text console manager

This should probably call out to a login program at some point. Right now
it just puts a root terminal on tty{1,2,3}.

Remember not to leave your Serenity workstation unattended!

Servers/TTYServer/Makefile

@@ -0,0 +1,23 @@
+include ../../Makefile.common
+
+TTYSERVER_OBJS = \
+    main.o
+
+APP = TTYServer
+OBJS = $(TTYSERVER_OBJS)
+
+DEFINES += -DUSERLAND
+
+all: $(APP)
+
+$(APP): $(OBJS)
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lc -lcore
+
+.cpp.o:
+	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
+
+-include $(OBJS:%.o=%.d)
+
+clean:
+	@echo "CLEAN"; rm -f $(APP) $(OBJS) *.d
+

Servers/TTYServer/main.cpp

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv)
+{
+    if (argc < 2)
+        return -1;
+
+    dbgprintf("Starting console server on %s\n", argv[1]);
+
+    while (true) {
+        dbgprintf("Running shell on %s\n", argv[1]);
+        int rc = system("/bin/Shell");
+        dbgprintf("Shell on %s exited with code %d\n", argv[1], rc);
+    }
+}