name2dim should accept values as a second input or return only the type

[felixcremer]

I wanted to get a dimension from a symbol and then set the values by calling this dimension.
This fails, because the returned dimension from name2dim already has a colon in it.
I think it would be nice to either only return the type instead of an instance with a colon in it or to accept a second input to name2dim with the values to wrap.
We can circumvent the problem via rebuild, but that looks scary as a user.

julia> using DimensionalData

julia> Dimensions.name2dim(:Ti)(1:10)
ERROR: MethodError: objects of type Ti{Colon} are not callable
The object of type `Ti{Colon}` exists, but no method is defined for this combination of argument types when trying to treat it as a callable object.
Stacktrace:
 [1] top-level scope
   @ REPL[116]:1

julia> DD.rebuild(DD.Dimensions.name2dim(:Ti), 1:10)

[rafaqz]

Yeah, you just need to rebuild.

[felixcremer]

Ok, I think I mainly got confused because the printing of the dimension with a Colon doesn't indicate, that it has a value set and looks the same as just the type apart from the coloring.

julia> Dimensions.name2dim(:Ti)
Ti

julia> Ti
Ti

julia> Dimensions.name2dim(:Ti) == Ti
false

Should we make the printing of the Dimension with a Colon value print Ti() ?
This is what we would have to put into the repl to get this exact object.

Would it be safer to use set instead of rebuild? Because the docs say something that set tries to do the right thing.