Add check-all command

Add convenient helper make function and use it in CI

Signed-off-by: James Sturtevant <jstur@microsoft.com>

Author: jsturtevant

.github/workflows/bvt.yml

@@ -12,9 +12,7 @@ jobs:
         uses: actions/checkout@v3
       - name: Check
         run: |
-          make check
-          make -C compiler check
-          make -C ttrpc-codegen check
+          make check-all
 
   make:
     name: Build

Makefile

@@ -32,3 +32,9 @@ endif
 check:
 	cargo fmt --all -- --check
 	cargo clippy --all-targets --all-features -- -D warnings
+
+.PHONY: check-all
+check-all:
+	$(MAKE) check
+	$(MAKE) -C compiler check
+	$(MAKE) -C ttrpc-codegen check