Add Make target to autoformat all QL.

Use

```sh
make autoformat
```

to format all `.ql` and `.qll` files under `ql/src`.

Use

```sh
make AUTOFORMAT=--check-only autoformat
```

to check that all `.ql` and `.qll` files under `ql/src` are correctly formatted and fail if they are not.

Author: Max Schaefer

Makefile

@@ -20,13 +20,18 @@ EXTRACTOR_PACK_OUT = build/codeql-extractor-go
 
 BINARIES = go-extractor go-tokenizer go-autobuilder go-bootstrap go-gen-dbscheme
 
-.PHONY: tools tools-codeql tools-codeql-full clean \
+.PHONY: tools tools-codeql tools-codeql-full clean autoformat \
 	tools-linux64 tools-osx64 tools-win64
 
 clean:
 	rm -rf tools/bin tools/linux64 tools/osx64 tools/win64 tools/net tools/opencsv
 	rm -rf $(EXTRACTOR_PACK_OUT) build/stats build/testdb
 
+AUTOFORMAT=-qq -i
+
+autoformat:
+	find ql/src -name *.ql -or -name *.qll | xargs codeql query format $(AUTOFORMAT)
+
 tools: $(addsuffix $(EXE),$(addprefix tools/bin/,$(BINARIES))) tools/tokenizer.jar
 
 .PHONY: $(addsuffix $(EXE),$(addprefix tools/bin/,$(BINARIES)))