Add support to change TWRP Folder

Change-Id: Id3b3b46d492bf83d1d9d3f535c880ea9d15b4107
diff --git a/twrp-functions.hpp b/twrp-functions.hpp
index 3ea4550..1b9c694 100755
--- a/twrp-functions.hpp
+++ b/twrp-functions.hpp
@@ -119,6 +119,7 @@
 	static bool Set_Encryption_Policy(std::string path, const fscrypt_encryption_policy &policy); // set encryption policy for path
 	static void List_Mounts();
 	static void Clear_Bootloader_Message();
+	static string Check_For_TwrpFolder();
 
 private:
 	static void Copy_Log(string Source, string Destination);