Add new data center IT equipment model

First draft of source code to add ElectricEquipment:ITE:AirCooled object to model data center IT equipment.
@mjwitte For reference, when you create a new struct, you don't _need_ to create the member constructor.  This was required in the transition because FORTRAN creates both default and member constructors by default so that for a stucture like:

``` FORTRAN
TYPE Info
  CHARACTER(len=20) :: Name
  INTEGER           :: Index
  REAL              :: FlowRate
END TYPE
```

you can either:

``` FORTRAN
TYPE( Info ) :: Variable
```

or

``` FORTRAN
TYPE( Info ) :: Variable( "Defaultname", 0, 0.0 )
```

, and the translator didn't try to automatically detect whether you used a member constructor or not, it just created both to be safe.  Which is why all the structs in the translated code have both.

Since (I'm guessing) you won't ever create one of these objects by providing the _full_ list of all (78?) variables, you don't need to define this member constructor.  

Doesn't hurt anything to have it, just letting you know.

Also mentioning @rraustad, @lgu1234, @mmatts and @wfbuhl for reference.