add ioClass to many module classes

+ add converted mb11_cfg.py

Change-Id: Ic985fc16b5ce39caacbf1f3abd87b13b1e7c2da7

frappy_psi/k2601b.py

@@ -50,6 +50,7 @@ SOURCECMDS = {
 
 
 class SourceMeter(HasIO, Module):
+    ioClass = K2601bIO
     export = False  # export for tests only
     mode = Parameter('measurement mode', EnumType(off=0, current=1, voltage=2),
                      readonly=False, export=False)
@@ -107,6 +108,7 @@ class Resistivity(HasIO, Readable):
 
 
 class Current(HasIO, Writable):
+    ioClass = K2601bIO
     sourcemeter = Attached()
 
     value = Parameter('measured current', FloatRange(unit='A'))
@@ -153,6 +155,7 @@ class Current(HasIO, Writable):
 
 
 class Voltage(HasIO, Writable):
+    ioClass = K2601bIO
     sourcemeter = Attached()
 
     value = Parameter('measured voltage', FloatRange(unit='V'))