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

tests/test_labels.py

@@ -0,0 +1,32 @@
+from .context import easymapping
+import json
+import pytest
+
+def test_label_generation():
+    label = easymapping.DockerLabelHandler("foo")
+
+    assert label.create("bar") == "foo.bar"
+    assert label.create(["bar", "foobar"]) == "foo.bar.foobar"
+
+
+def test_label_data():
+    label = easymapping.DockerLabelHandler("base")
+    label.set_data(json.loads('{"base.definitions":"h2"}'))
+
+    label_name = label.create("definitions")
+    assert label_name == "base.definitions"
+    assert label.has_label(label_name)
+    assert label.get(label_name) == "h2"
+
+
+def test_label_complex_key():
+    label = easymapping.DockerLabelHandler("till")
+    
+    data = dict()
+    data["till.definitions"] = "h2"
+    data["till.host.h2"] = "fqdn.example.org"
+    data["till.mode.h2"] = "tcp"
+    label.set_data(json.loads(json.dumps(data)))
+
+    assert label.get(label.create(["host", "h2"])) == "fqdn.example.org"
+    assert label.get(label.create(["mode", "h2"])) == "tcp"