Fix printing error messages

This makes `ios-deploy` print error messages for known error codes so
that the console log looks like:

```
ios-deploy[13450:4855044] [ !! ] Error 0x1: An unknown error occurred. AFCRemovePath(conn, name)
ios-deploy[13450:4855044] [ !! ] Error 0xa: You do not have permission. AFCRemovePath(conn, name)
```

instead of:

```
ios-deploy[13409:4853438] [ !! ] Error 0x1: unknown. AFCRemovePath(conn, name)
ios-deploy[13409:4853438] [ !! ] Error 0xa: unknown. AFCRemovePath(conn, name)
```

The fix is to create an error code from the input `error` to match
what's defined in `errorcode_to_id` (for some reason, the errors are
`OR`'d with `0xe8000000`). This change is taken from the
`SDMMobileDevice` project, which is the source for the error codes.

Author: eunikolsky

src/ios-deploy/errors.h

@@ -511,9 +511,14 @@ const int error_id_to_message_count = sizeof(error_id_to_message) / sizeof(error
 const char* get_error_message(unsigned int error) {
 	const char* id = NULL;
 
+	// this creates an error code to match what's defined in `errorcode_to_id`;
+	// taken from https://github.com/samdmarshall/SDMMobileDevice/blob/c3e1e97b1310c7a7a10f68281752760038b75e16/Framework/include/SDMMobileDevice/SDMMD_Error.h#L512
+	// note that the `error & 0xff` isn't done here because there are defined errors like `0xe8008001`
+	const unsigned int error_code = error | 0xe8000000;
+
 	// Lookup error localization id
 	for (int i = 0; i < errorcode_to_id_count; i++) {
-		if (errorcode_to_id[i].error == error) {
+		if (errorcode_to_id[i].error == error_code) {
 			id = errorcode_to_id[i].id;
 			break;
 		}