added documentation for parameter list

… branch dev/emc, into ufs_public_release. Squashed commit of the following:

commit 5f7a981
Author: Valbona Kunkel <valbona.kunkel@noaa.gov>
Date:   Wed Jan 22 18:35:10 2020 -0500

    Added to parameters list 4 new parameters

commit 62a32e1
Author: Valbona Kunkel <valbona.kunkel@noaa.gov>
Date:   Tue Dec 17 14:38:28 2019 -0500

    added Doxygen files

commit af03053
Author: Valbona Kunkel <valbona.kunkel@noaa.gov>
Date:   Wed Oct 23 15:11:57 2019 -0400

    corrected parameter list

commit 47bdb2d
Author: Valbona Kunkel <valbona.kunkel@noaa.gov>
Date:   Thu Oct 10 15:20:26 2019 -0400

    add list description of parameters