Massive refactoring of all code + audio skeleton.

This should make it easier to find files and (in the future) split things
up into separate libraries.
It also changes around emulator initialization to make it a little more
difficult to do things out of order and a little more sensible as to when
real init work happens.
Also adding a skeleton audio system/driver and reworking CPU register
access to be more extensible.

src/xenia/kernel/xam/xam_state.h

@@ -0,0 +1,44 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_XAM_XAM_STATE_H_
+#define XENIA_KERNEL_XAM_XAM_STATE_H_
+
+#include <xenia/common.h>
+#include <xenia/core.h>
+
+#include <xenia/export_resolver.h>
+#include <xenia/kernel/kernel_module.h>
+
+
+namespace xe {
+namespace kernel {
+namespace xam {
+
+
+class XamState {
+public:
+  XamState(Emulator* emulator);
+  ~XamState();
+
+  xe_memory_ref memory() const { return memory_; }
+
+private:
+  Emulator*       emulator_;
+  xe_memory_ref   memory_;
+  ExportResolver* export_resolver_;
+};
+
+
+}  // namespace xam
+}  // namespace kernel
+}  // namespace xe
+
+
+#endif  // XENIA_KERNEL_XAM_XAM_STATE_H_