PatchManager中initPatchs()打补丁的顺序性

AndFix可以打多个补丁，但存在不同补丁修改了同一个类的情况。
如果打补丁的顺序没有保证，比如initPatchs()方法中直接调用mPatchDir.listFiles()，该方法没有保证顺序返回files列表，则补丁就可能被覆盖了，这个怎么解决呢？

Read PatchManager.initPatchs(), especially its use of mPatchDir.listFiles(), to understand how multiple patches targeting one class are currently selected or applied. Done means patch application has a deterministic order and does not depend on filesystem listing order when patches modify the same class; the payload names no test file.

Written by the indexing model from the issue text.