Special modal mode for Revit lookup

[CADBIMDeveloper]

Hi @jeremytammik @Nice3point2

I'm just thinking about bringing modal mode support back.

Motivation: I'm actively using Iron Python shell for testing and prototyping and earlier I could use RevitLookup together with IPS like:

#do something
lookup(some_object) #execution stops here
#do something else with some_object
lookup(some_object)

Of course I still can print to console or write to file, but it's much less comfortable, requires more time (remember, I'm mainly using it for prototyping)

There is no need to make changes in the UI, just have some utilities in DLL that can be used externally.

I can do it by myselft when I have time if someone else needs this :-)

What do you think?