labkey.transform.getRunPropertyValue: Assay transform script helper function to get a run property value from a data.frame
Description
A function that takes in data.frame of the run properties info for a given assay transform script execution and
returns the value for a given property name.
the data.frame of the run property key/value pairs
propName
the name of the property to get the value of within the runProps data.frame
Details
This helper function will most likely be used within an assay transform script after the
labkey.transform.readRunPropertiesFile function has been called to load the full set of run properties.