Add Dockerfile and Makefile to create ocr-d image

Makefile

@@ -0,0 +1,26 @@
+PYTHON = python3
+PIP = pip3
+PYTHONIOENCODING=utf8
+
+DOCKER_BASE_IMAGE = docker.io/ocrd/core:v2.69.0
+DOCKER_TAG = ocrd/dinglehopper
+
+help:
+	@echo
+	@echo "  Targets"
+	@echo
+	@echo "    install Install full Python package via pip"
+	@echo "    docker  Build the ocrd/dinglehopper docker image"
+
+# Install Python package via pip
+install:
+	$(PIP) install .
+
+docker:
+	docker build \
+	--build-arg DOCKER_BASE_IMAGE=$(DOCKER_BASE_IMAGE) \
+	--build-arg VCS_REF=$$(git rev-parse --short HEAD) \
+	--build-arg BUILD_DATE=$$(date -u +"%Y-%m-%dT%H:%M:%SZ") \
+	-t $(DOCKER_TAG) .
+
+.PHONY: help install docker