Load only PDB types option and more

[CouleeApps]

Discussed in https://github.com/Vector35/binaryninja-api/discussions/5303

^{Originally posted by uniquadev April 20, 2024} 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..

Needed for this is load options to enable/disable symbols loading from a pdb. Likely just a setting and wrapping the whole thing in an if-statement.

Also needed is a way to specify these options when using Import Debug Info from External File...