Hello Everyone：
I submited a WIP patch: https://github.com/apache/openwhisk/pull/4790 here
Sometimes, admin may want to reinitalize the runtime config, e.g. nodejs:10
prewarm container number is less, lead to cold start, in order to handle user's
request as soon as possible,
admin may want to reinitalize the runtime configuration to increase the
nodejs:10 prewarm containers.
And admin may want to reinitalize the runtime config on some limited invokers
Currently, just finish its basic functions and worked well in my local, but
didn't add test cases then.
If the direction of this patch is ok, i will finish its corresponding test cases
Best Regards,
ning.yougang
