Include common names for Magisk app in list of flashable zip files.

We introduce a new XML element prfxfilter for file name prefix
filtering, e.g. Magisk- .

The file is first matched against the list of extensions and, if there's
no match, then matched against the list of prefixes. An extension or
prefix may be equal to the whole filename.

Change-Id: I46a985c7298799793911948bc74296bebb306d9e
diff --git a/twrpDigestDriver.cpp b/twrpDigestDriver.cpp
index 074b6c3..0ab94df 100755
--- a/twrpDigestDriver.cpp
+++ b/twrpDigestDriver.cpp
@@ -70,7 +70,7 @@
 
 	if (!TWFunc::Path_Exists(digestfile)) {
 		delete digest;
-		if (Filename.find(".zip") == std::string::npos && Filename.find(".map") == std::string::npos) {
+		if (Filename.find(".zip") == std::string::npos && Filename.find(".apk") == std::string::npos && Filename.find(".map") == std::string::npos) {
 			gui_msg(Msg(msg::kError, "no_digest_found=No digest file found for '{1}'. Please unselect Enable Digest verification to restore.")(Filename));
 		} else {
 			return true;