add a lot of current stuff

this is not (yet) in the frm2 repo

Change-Id: Ia5b2996803c3dbb15b85ab1bc3a24717ac6297fb

cfg/test_ppms_mf.cfg

@@ -0,0 +1,73 @@
+[node PPMS.psi.ch]
+description = PPMS at PSI
+
+[interface tcp]
+type = tcp
+bindto = 0.0.0.0
+bindport = 5000
+
+#[module tt]
+#class = secop_psi.ppms.Temp
+#.description = main temperature
+#iodev = ppms
+
+[module mf]
+class = secop_psi.ppms.Field
+.description = magnetic field
+iodev = ppms
+
+#[module pos]
+#class = secop_psi.ppms.Position
+#.description = sample rotator
+#iodev = ppms
+
+#[module lev]
+#class = secop_psi.ppms.Level
+#.description = helium level
+#iodev = ppms
+
+#[module chamber]
+#class = secop_psi.ppms.Chamber
+#.description = chamber state
+#iodev = ppms
+
+#[module r1]
+#class = secop_psi.ppms.BridgeChannel
+#.description = resistivity channel 1
+#no = 1
+#value.unit = Ohm
+#iodev = ppms
+
+#[module i1]
+#class = secop_psi.ppms.Channel
+#.description = current channel 1
+#no = 1
+#value.unit = uA
+#iodev = ppms
+
+#[module v1]
+#class = secop_psi.ppms.DriverChannel
+#.description = voltage channel 1
+#no = 1
+#value.unit = V
+#iodev = ppms
+
+#[module tv]
+#class = secop_psi.ppms.UserChannel
+#.description = VTI temperature
+#enabled = 1
+#value.unit = K
+#iodev = ppms
+
+#[module ts]
+#class = secop_psi.ppms.UserChannel
+#.description = sample temperature
+#enabled = 1
+#value.unit = K
+#iodev = ppms
+
+[module ppms]
+class = secop_psi.ppms.Main
+.description = the main and poller module
+class_id = QD.MULTIVU.PPMS.1
+pollinterval = 2