[FR]: Simple example of using run_binary() with out_dirs

[brycefisher]

What is the current behavior?

I'm trying to figure out if run_binary is appropriate for my use case, but I can't determine where my tool should write its outputs for them to appear. However, there's no simple examples of this attribute being used I can easily understand, and I can't use makevars or location to find my out_dirs.

Describe the feature

rules_pkg has a directory of examples that make it relatively easy to figure out how to use the rules from looking at some simple to moderately complex examples. I'd love to see something similar for run_binary() since its only "genrule" that has the out_dirs capability.

Related info:

• I did try looking at this issue but I couldn't quite wrap my head around it
• I also tried looking at the source code for rules_js but I couldn't easily jump through the project to figure out how all of that works