Refactor: tried to refactor code

- move scripts to assets/scripts (and updated build)
 - put most logic into HaproxyConfigGenerator
 - created DockerLabelHandler for all label handling from previous code
 - added unit tests and fixtures to cover HaproxyConfigGenerator and DockerLabelHandler
 - added a Makefile with build (for docker build) and test targets

assets/scripts/swarm.py

@@ -0,0 +1,24 @@
+import os
+from easymapping import HaproxyConfigGenerator
+
+# path = os.path.dirname(os.path.realpath(__file__))
+with open("/tmp/.docker_data", 'r') as content_file:
+    lineList = content_file.readlines()
+
+result = {
+    "customerrors": True if os.getenv("HAPROXY_CUSTOMERRORS") == "true" else False
+}
+
+if os.getenv("HAPROXY_PASSWORD"):
+    result["stats"] = {
+        "username": os.getenv("HAPROXY_USERNAME") if os.getenv("HAPROXY_USERNAME") else "admin",
+        "password": os.getenv("HAPROXY_PASSWORD"),
+        "port": os.getenv("HAPROXY_STATS_PORT") if os.getenv("HAPROXY_STATS_PORT") else "1936",
+    }
+
+cfg = HaproxyConfigGenerator(result)
+print(cfg.generate(lineList))
+
+# print(jsonStr)
+
+