Propose - Allow multiple App Function Instances per Resource Group

[pswetz]

As is the application assumes the 'name' param of the instance.install command is both the resource group AND function application name. The proposal is to separate out the two params (Resource Group name and Function App Name) with app name being optional, if second param not provided then default to same value as RG name.

If the function app name param is used then install/update the function application under that name inside the provided resource group name.

[giuliov]

This is implemented in rel-0.4 branch, testing is underway.

[pswetz]

Have configured a few last week without issues. The remove patch probably needs a few tests but otherwise this seems good.

[giuliov]

I started full regression yesterday and found that update.rule command is not working.

[giuliov]

fixed in #18