Start working on virtual consoles/TTYs.

This is a mess right now, but I'd rather commit as I go.

Kernel/TTY.cpp

@@ -0,0 +1,25 @@
+#include "TTY.h"
+
+TTY::TTY(unsigned major, unsigned minor)
+    : CharacterDevice(major, minor)
+{
+}
+
+TTY::~TTY()
+{
+}
+
+ssize_t TTY::read(byte* buffer, size_t size)
+{
+    return 0;
+}
+
+ssize_t TTY::write(const byte* buffer, size_t size)
+{
+    return 0;
+}
+
+bool TTY::hasDataAvailableForRead() const
+{
+    return false;
+}