TWRP-ify AOSP code

Pull in most TWRP sources
Stub out partition management code
Make it compile -- probably will not boot
Kind of a mess but have to start somewhere
diff --git a/gui/fill.cpp b/gui/fill.cpp
new file mode 100644
index 0000000..094814e
--- /dev/null
+++ b/gui/fill.cpp
@@ -0,0 +1,56 @@
+// fill.cpp - GUIFill object
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/reboot.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include <string>
+
+extern "C" {
+#include "../common.h"
+#include "../minuitwrp/minui.h"
+#include "../recovery_ui.h"
+}
+
+#include "rapidxml.hpp"
+#include "objects.hpp"
+
+GUIFill::GUIFill(xml_node<>* node)
+{
+    xml_attribute<>* attr;
+    xml_node<>* child;
+
+    if (!node)
+        return;
+
+    attr = node->first_attribute("color");
+    if (!attr)
+        return;
+
+    std::string color = attr->value();
+    ConvertStrToColor(color, &mColor);
+
+    // Load the placement
+    LoadPlacement(node->first_node("placement"), &mRenderX, &mRenderY, &mRenderW, &mRenderH);
+
+    return;
+}
+
+int GUIFill::Render(void)
+{
+    gr_color(mColor.red, mColor.green, mColor.blue, mColor.alpha);
+    gr_fill(mRenderX, mRenderY, mRenderW, mRenderH);
+    return 0;
+}
+