Cloned to local machine, .IN files added

Randomly-selected outfiles.IN and sitepar.IN added from older DayCent
directories
Update with functional Milan, TN fileset

- cult.100, harv.100 updated to shorten long descriptions that were
causing a warning.
- outfiles.IN updated to turn off large file generation.
- sitepar.in replaced with something more recent from Albia case study
to get rid of a 'no elevation specified' DDCentEVI error.
- outvars.txt added.
- Site, weather, soils, and schedule file sequence added for Milan, TN
site (seems to run well, though not fully validated against site data
yet).