add stubs for pluggable implementations

dynamic.py

@@ -0,0 +1,27 @@
+import sys
+import importlib
+import configparser
+
+from implementation import *
+from implementation import ibuddy
+
+# Read chosen implementation from config
+try:
+    config = configparser.ConfigParser()
+    config.read('config.ini')
+    implementation = config.get('general', 'implementation')
+except:
+    sys.exit('[error] Failed to read config file!')
+    
+# Load implementation
+implementations = [subclass.__name__ for subclass in ibuddy.__subclasses__()]
+try:
+    if implementation in implementations:
+        ibuddy = getattr(globals()[implementation], implementation)()
+    else:
+        raise
+except:
+    sys.exit('[error] Failed to load implementation!')
+
+# Fun!
+ibuddy.test()