Rank analyzers, code fixes and refactorings by reliability and other factors

[giggio]

There should be a way for the user to tell if an analyzer/codefix/refactoring library is safe, and if the individual components are safe. And if they are popular. And useful. And other things. For instance:

• How often does the library crash?
• How often does the library break code when refactoring or applying a code action?
• What is the popularity of the library?
• What is the number of stars on github and VS gallery?
• How long does the library authors take to solve a bug and publish the correction?

We are already seeing a lot of analyzer libraries, and more are coming. Users need help choosing.