Option to show/hide references

[brad-jones]

Hi Matt,

Love your work. Building my first C# app ever so it's nice to be able to use a familiar IDE.
Just one thing, as cool as the "references" feature is, it would be nice to be able to show/hide them on command.

I find they tend to get in the way a little bit.
Weird things sometimes happen when you start editing lines directly above and below.

Cheers Brad