Add quickdev target

Makefile

@@ -46,6 +46,12 @@ dev-dynamic: BUILD_TAGS+=testonly
 dev-dynamic: prep
 	@CGO_ENABLED=1 BUILD_TAGS='$(BUILD_TAGS)' VAULT_DEV_BUILD=1 sh -c "'$(CURDIR)/scripts/build.sh'"
 
+# quickdev creates binaries for testing Vault locally like dev, but skips
+# the prep step.
+quickdev: BUILD_TAGS+=testonly
+quickdev:
+	@CGO_ENABLED=$(CGO_ENABLED) BUILD_TAGS='$(BUILD_TAGS)' VAULT_DEV_BUILD=1 sh -c "'$(CURDIR)/scripts/build.sh'"
+
 # *-mem variants will enable memory profiling which will write snapshots of heap usage
 # to $TMP/vaultprof every 5 minutes. These can be analyzed using `$ go tool pprof <profile_file>`.
 # Note that any build can have profiling added via: `$ BUILD_TAGS=memprofiler make ...`