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/minui/Android.mk b/minui/Android.mk
index 4c4d7c7..f9afd6b 100644
--- a/minui/Android.mk
+++ b/minui/Android.mk
@@ -6,7 +6,7 @@
 LOCAL_C_INCLUDES +=\
     external/libpng\
     external/zlib
-
+LOCAL_STATIC_LIBRARY := libpng
 LOCAL_MODULE := libminui
 
 ifeq ($(TARGET_RECOVERY_PIXEL_FORMAT),"RGBX_8888")