Load only PDB types option and more

[uniquadev]

Currently, when importing debug information with a pdb file, there is no pop-up window that allows you to toggle loading options. In my scenario, I have a pdb file that doesn't match the current binary; however, the types do match. It would be useful to have the ability to toggle some loading options..

[CouleeApps]

I've opened #5373 to track adding this