restore *.out to .gitignore, except in resources (#14796)

## Change Description

Restore *.out to .gitignore, with an exclusion in resource directories

## Security Assessment

Delete all except the correct answer:

- This change has no security impact

### Impact Description

Only changes gitignore rules

(Reviewers: please confirm the security impact before approving)

.gitignore

@@ -1,6 +1,8 @@
 *~
 *.o
 .*.crc
+*.out
+!**/resources/*.out
 .gradle/
 .idea/
 .vscode/