[Feature Request] Deal with breakpoints not set by us

[eyqs]

Currently, a DebugProxy instance only keeps track of breakpoints that it sets. This allows multiple developers to debug the same application in production from different IDEs simultaneously without any risk or confusion. However, there should be a way for developers to toggle whether or not they want to see every breakpoint on the debuggee.

[iantalarico]

@ofrobots Is this something your team is planning to work on in the near future?

[ofrobots]

@iantalarico Not immediately. Do you want to drive this?

[iantalarico]

@ofrobots Sure, I'll start with #14 to get my feet wet if that's okay? Should be a bit smaller, then I'll tackle this one