Updates on ISO13790 package

[amaccarini]

This issue will focus on making two updates on the ISO13790 package:

• The ISO13790.Validation.BESTEST package will be updated by using the recent results from ANSI/ASHRAE Standard 140-2020. Current results are based on an old version (ANSI/ASHRAE Standard 140-2007). In addition, the documentation text will be improved by showing some plots to directly visualize differences among tools.
• Two models will be added to ISO13790.Examples package. In particular, template models of residential and office will be developed using pre-defined occupancy schedules and typical HVAC systems.

[amaccarini]

@mwetter: I noticed that the model Buildings.Controls.OBC.CDL.Continuous.MovingAverage is not available in the IBPSA library, but it would actually be useful for the BESTEST validation. Is it possible to integrate into the IBPSA library?

[mwetter]

@amaccarini : As CDL is not in the IBPSA library, and still undergoes some changes, I suggest you copy this block and put it for example in IBPSA.Utilities.Math or into a BaseClasses package of your validation.