Add some options to FileMenu

!Warning, there is no confirmation yet on deletions

source/utils/utils.c

@@ -20,4 +20,13 @@ void MaskIn(char *mod, u32 bitstream, char mask){
         bitstream >>= 1;
         mod++;
     }
+}
+
+// non-zero is yes, zero is no
+bool StrEndsWith(char *begin, char *end){
+    begin = strrchr(begin, *end);
+    if (begin != NULL)
+        return !strcmp(begin, end);
+
+    return 0;
 }

source/utils/utils.h

@@ -2,4 +2,5 @@
 #include <utils/types.h>
 
 char *CpyStr(const char* in);
-void MaskIn(char *mod, u32 bitstream, char mask);
+void MaskIn(char *mod, u32 bitstream, char mask);
+bool StrEndsWith(char *begin, char *end);