Add switch in weather data reader

[mwetter]

Add switch in weather data so that it can read real weather data or user specified input

[mwetter]

[mwetter] The switch should allow separate specification of
PAtm (already implemented)
TDryBul
relHum
winSpe
winDir
HGloHor
HDifHor

[mwetter]

[wzuo] All the switches are added.

[mwetter]

[mwetter] The model implementation is not complete and was not sufficiently tested and revised. The following issues need to be addressed:

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We never use Modelica.SIunits.Temp_C. ALWAYS use Modelica.SIunits.Temperature.

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The same applies to relative humidity, which is between 0 to 1, not 0 to 100. Otherwise, we will make mistakes if we mix conventions.

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Also, never put units or ranges in the comment: Use unit="1" instead of "Relative humidity in [0-100](used if relHum=Parameter)".

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Use units for all input and output signals. See for example the Buildings.Fluid.Sensors. A proper declaration is
Modelica.Blocks.Interfaces.RealInput TDryBul_in(
final quantity="Temperature",
final unit = "K", min=0,
displayUnit = "degC")
instead of
Modelica.Blocks.Interfaces.RealInput TDryBul_in

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If parameters can conditionally be disabled, then they must have a value. Otherwise, a tool may complain about missing parameters.

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Several typos in the comment need to be fixed (such as for 'temperature' and 'atmospheric pressure').

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Don't use
import Buildings.BoundaryConditions.Types.DataSource;
import Buildings.BoundaryConditions.Types.SkyTemperatureCalculation;
as this is dangerous because everything gets in scope. Use instead
import ds = Buildings.BoundaryConditions.Types.DataSource;
...

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Fix the comments: There is no physical quantity "Global diffuse radiation": It is either global or diffuse, but not global diffuse. Make sure it is correctly used in the model.

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The statement
parameter Modelica.SIunits.Conversions.NonSIunits.Angle_deg winDir
"Wind direction (used if winDir=Parameter)"
annotation (Evaluate=true, Dialog(group="Data source"));
must be fixed. We NEVER use NonSIunits. Use SIUnits instead and set the displayUnit attribute to the required unit.

[mwetter]

[wzuo] 1. There is no unit "percentage" in Modelica. Which unit should we use?

1. For "import ds = Buildings.BoundaryConditions?.Types.DataSource?;"
   I remember that we should use the full path instead of alias. Is that right?

[mwetter]

[wzuo] The following changes have been made:

1. All user input files and parameters must use SI units. We add models to convert all the non-SI units in TMY3 data before they connect to switches.
2. Delete the
   import Buildings.BoundaryConditions?.Types.DataSource?;
   import Buildings.BoundaryConditions?.Types.SkyTemperatureCalculation?;

We do not use
import ds = Buildings.BoundaryConditions?.Types.DataSource?;
Because Dymola's graphic interface can not automatically transfer the code.

1. Change the "global diffuse radiation" to "diffuse horizontal radiation"