[REQUEST] Upload data overrides

[gabor-boros]

Is your feature request related to a problem? Please describe.

When uploading to a target, there is no way to override Client and Project parameters.

Describe the solution you'd like

In many cases, the target will have different Client and Project names compared to the source. For example, in the source (like Tempo) the Client is called "MC" (as per the AccountKey is "MC"), though in the target tool it is called "My Company", hence it will be printed on the invoice. In the case of Project names, the situation is similar.

To eliminate this issue, create an override configuration, that can be configured per target. Why not source? Because sources have nothing to do with upload overrides.

Describe alternatives you've considered

N/A

Additional context

N/A