includes/std: Added std::mem::reached() for use with while-sized arrays

includes/std/mem.pat

@@ -46,6 +46,15 @@ namespace auto std::mem {
         return $ >= (std::mem::base_address() + std::mem::size());
     };
 
+    /**
+        Function that returns true if the cursor position is at or beyond the given address
+        @param address The address to compare against
+        @return True if the cursor is at or beyond the given address
+    */
+    fn reached(u128 address) {
+        return $ >= address;
+    };
+
     /**
         Aligns the given value to the given alignment
         @param alignment The alignment to align to