[Functions] Introduce azure-functions:up target

[asavaritayal]

Feature proposal - starting issue to gauge traction and get thoughts of the larger group. This is inspired by az webapp up. /cc @ahmedelnably

mvn azure-functions:up \
                 -DappName={function app name} \
                 -Dregion={region} 

Introduce a azure-functions:up target that :

• automatically creates a resource group and function app in Azure based on the appName and region parameters
• generates a local Java project with an HTTP triggered function which is slightly more complex than basic hello world
• builds the package and publishes it to Azure
• prints the Function URL to the CLI

/cc @hexiaokai @selvasingh @brunoborges @jeffhollan

[asavaritayal]

Also /cc @JasonFreeberg - may be relevant to App Service as well.

[Flanker32]

@asavaritayal Sorry for reply late . For me the azure-functions:up seems to be an demo project which could show the usage of functions. and i think this could be better to implemented by an archetype. Or we could made a demo project published to azure and user may visit it through URL we provided.