Facade/Free-field at receptor

[goodhandd]

This should take priority over the facade/ free-field at plant issue.

At the total noise level at receptor (the final final noise level which adds all the noise levels together), there needs to be a selector button that allows the user to select facade or free-field. If free-field is selected then no adjustment is made. If facade is selected then 3 is added to the final noise level. The default should be facade - i.e. it adds 3 dB by default.