Added tools to Makefile

Author: AdamKorcz

Makefile

@@ -110,7 +110,7 @@ TAGS ?=
 TAGS_SPLIT := $(subst $(COMMA), ,$(TAGS))
 TAGS_EVIDENCE := $(MAKE_EVIDENCE_DIR)/tags
 
-GO_DIRS := cmd integrations models modules routers build services vendor
+GO_DIRS := cmd integrations models modules routers build services vendor tools
 GO_SOURCES := $(wildcard *.go)
 GO_SOURCES += $(shell find $(GO_DIRS) -type f -name "*.go" -not -path modules/options/bindata.go -not -path modules/public/bindata.go -not -path modules/templates/bindata.go)