Add method to motion control mapping classes to request/identify used motion list

[rocco8773]

Create a method for the motion control mapping classes that will identify and/or return the motion list(s) used for a given device configuration. Something like...

def get_motionlists(config_name):
    # indentify used motions lists for config_name and construct a dictionary ml_dict
    # with the information
    return ml_dict

Note: This is not done during the initial mapping due to the large overhead required to make the identification. Thus, performing this action upon a user request is more suitable.

[rocco8773]

would address issue #32

[AquaDragon]

@svincena / shreekrishna had a procedure in IDL that checks the list of modules used in the creation of the hdf5 file and would print the motion lists as it read the data. if we did the same here, how much overhead would it require?

[rocco8773]

@AquaDragonTRS currently all the detected motion lists are added to the info attribute dictionary on on the data array that is read out. The issue is, a dataset can use more than one motion list and the only way to know for certain which ones are used is to read the entire 'Configuration name' column in the HDF5 dataset. This is an expensive overhead!

It will probably be useful to also have a method that identifies which rows in a dataset are associated with which motion list.

[AquaDragon]

would it be possible to obtain the probe to motion list mapping from the hdf5 file apart from reading the configuration header? if that information is not readily available from the file it seems inevitable that we have to spend the overhead trying to deduce which probe got assigned which motion list

[svincena]

@AquaDragonTRS Low overhead to read the motion lists used in the run, but shreekrishna probably assumes one motion list per probe. See @rocco8773 's complication regarding the issue.