Inital comit.

Basic transfer function and tank impedance plotting

pySmithPlot/smithplot/__init__.py

@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+import matplotlib
+from matplotlib.projections import register_projection
+
+from .smithaxes import SmithAxes
+
+# check version requierment
+if matplotlib.__version__ < '1.2':
+    raise ImportError("pySmithPlot requires at least matplotlib version 1.2")
+
+# add smith projection to available projections
+register_projection(SmithAxes)