add to clean and distclean targets

Author: Dane Springmeyer

Makefile

@@ -25,7 +25,18 @@ format:
 	./scripts/format.sh
 
 clean:
-	rm -rf build
+	rm -rf ./build
+	# remove remains from running 'make coverage'
+	rm -f *.profraw
+	rm -f *.profdata
+	@echo "run 'make distclean' to also clear mason_packages, .mason, and .toolchain directories"
+
+distclean: clean
+	rm -rf mason_packages
+	# remove remains from running './scripts/setup.sh'
+	rm -rf .mason
+	rm -rf .toolchain
+	rm -f local.env
 
 .PHONY: test bench