Create a new section for cloud factor

[micahjohnson150]

Per #98 we are separating out cloud factor from solars section to create a more verbose description of the section for cloud factor. We are not separating out this in the code so there will be a bit of monkeying around with configs. This will also create an extra set of min and max fas we need them for solar and CF.

@scotthavens How do you like the descriptions for these cloud factor items:

HEADER
Cloud Factor - Fraction used to limit solar radiation Cloudy (0) - Sunny (1)

stations - Stations to use for distributing cloud factor as a decimal representing full clouds (0) to full sun (1).

min and max will follow a similar description as stations.

[scotthavens]

Cloud factor - ratio of measured incoming solar radiation to clear sky solar radiation that will range from cloudy (0) to sunny (1)`

Since these are probably stations that have solar radiation measurements that might be good to clarify. Does it need to have the 0-1 description if it's in the header? Probably doesn't hurt to be verbose since it's a calculated value. Something like:

stations - Stations with estimated cloud factor from measured solar radiation ranging from cloudy (0) to sunny (1)

[micahjohnson150]

The only reason I would add it to the description is so folks could still request help from inicheck --details or for the config documentation online. If I had to pick one to leave one out I would probably leave out the header's prescribed 0-1 but I agree verbose is great!

[scotthavens]

It makes sense to have it as many places as needed.