added surelock laser module

[CatherineH]

The Ondax Surelock Laser module has a communication protocol with few patterns, thus there is little to be gained other than confusion in using factory modules.

[coveralls]

Coverage increased (+0.4%) to 84.418% when pulling 578976d on ch-ondax-rebase into 469dfe6 on develop.

[scasagrande]

These classes should probably be prefixed with an underscore so that users don't think they should be accessing it via LM.AutomaticCurrentControl

[scasagrande]

A lot of these properties can be converted to using the property templates.

For inner classes, you can also use the property templates if you define dummy sendcmd and query functions within those inner classes like this:

def sendcmd(self, msg):
    self._parent.sendcmd(msg)

def query(self, msg, size=-1):
    return self._parent.query(msg, size)

This will then allow you to put upper and lower bounds on all the properties with setters.

[coveralls]

Coverage increased (+0.4%) to 84.468% when pulling 1100d74 on ch-ondax-rebase into 469dfe6 on develop.

[coveralls]

Coverage increased (+0.4%) to 84.431% when pulling 29a6213 on ch-ondax-rebase into 469dfe6 on develop.

[coveralls]

Coverage increased (+0.5%) to 84.514% when pulling 074d72f on ch-ondax-rebase into 469dfe6 on develop.

[scasagrande]

Note that one of the things I changed was some of the units you were using in time-based properties. There was a lot of pq.mS, which is not milliseconds, but millisiemens. I changed these all to pq.ms so your code might need to be changed accordingly.

[scasagrande]

I'm going to assume my changes were okay. I might revisit some implementation details later, but I suppose we'll go with this for now.