Properly handle list values that include square braces

[georgemccabe]

Multiple users have defined list values in METplus config files including the square braces that are found in the MET config files:

POINT_STAT_MASK_SID = ["/data/users/cfrd/METplus_playaround/StationLists/2011.stns", "/data/users/cfrd/METplus_playaround/StationLists/2012.stns"]

List values in METplus config files currently cannot not include square braces and will be formatted properly when set in the MET config files.

Describe the Enhancement

Enhance the list parsing logic to properly handle list values that contain the square braces so that the above example will work properly.

Time Estimate

<1 day

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