Migrated to cobra for command handling and viper for config handling

Makefile

@@ -1,5 +1,13 @@
+VERSION := 1.0.0
+
+GO := go
+
+BUILD_FLAGS := -buildmode=pie -trimpath
+LDFLAGS := -linkmode=external -extldflags="-Wl,-z,relro,-z,now"
+
 build:
-	@go build -o ./certman .
+	$(GO) build $(BUILD_FLAGS) -ldflags='$(LDFLAGS)' -o ./certman .
+	@cp ./certman ./certman-$(VERSION)-amd64
 
 stage: build
 	@sudo cp ./certman /srv/vm-passthru/certman