BundlePatch

Unity AssetBundle Diff Patch

功能：

1. 拆分原始bundle，分析出被patch包覆盖的冗余资源并清理。
2. 打印被patch包覆盖的资源信息，可用于运行时patch生成
3. 打印bundle的完整信息，用于分析调试
4. 重组bundle包，加快加载性能，方便二进制更新
5. 二进制更新，基于重组的bundze包做资源级别的diff patch

dump difference with a a_patch:

BundlePatch.exe a a_patch --diff

clean patched part in bundle a

BundlePatch.exe a a_patch --clean

dump asset info, like objs, pathids, resources

BundlePatch.exe a

reconstruct bundle for optimize load speed

BundlePatch.exe a --base

make patch from base bundle

BundlePatch.exe base patch --patch