Currently, we declare two separate dictionaries for the runtime-config fuzzer and the startup-config fuzzer.

If we have a parameter that we want to fuzz at runtime and during startup, this will involve having to add the parameter's information to both the runtime config fuzzer dictionary and the startup config fuzzer dictionary. This will lead to requiring people to change the fuzzer limits for the same parameter in two different areas if we want the parameter to be fuzzed at runtime and startup.

This ticket will make it so that we add a property "fuzz_at" which will be a list that can contain "startup" and/or "runtime" and to delete the separate runtime config fuzzer dictionary.