Deprecating the Multiply/Divide methods for the Temperature

[lipchev]

As discussed in #1587, these are supposed to go away in v6

[lipchev]

@angularsen Should I also try to deal with the Equals method? It's part of the generated code, and if we were to introduce the overload (with TemperatureDelta as tolerance), we'd have to probably also handle it in the very generic overload..

[angularsen]

@angularsen Should I also try to deal with the Equals method? It's part of the generated code, and if we were to introduce the overload (with TemperatureDelta as tolerance), we'd have to probably also handle it in the very generic overload..

I don't have a good overview, but if you see a good way to obsolete equals methods in v5 where better overloads already exist in v5 and not only introduced in v6, then sure.

[angularsen]

I'll just merge this regardless