Express Plugin support CORS & Seamless config with Azure Functions

[mildronize]

https://sebastian-rogers.medium.com/azure-functions-localhost-and-cors-how-to-get-them-working-together-when-debugging-locally-e48be40a411f

local.settings.json

{
  "Host": {
    "LocalHttpPort": 7071,
    "CORS": "*"
  }
}

Prefer do with:

• add host.json & local.settings.json builder settings for azure functions #125

doc: https://github.com/Azure/azure-functions-host/wiki/host.json-(v2)

Doc: https://learn.microsoft.com/en-us/azure/azure-functions/functions-develop-local