Specify a path to the code for a lambda function

[owena1337]

This is a Feature Proposal

Currently, you have to specify the handler for a function like so;
functions:
MyLambda:
handler: Lambdas/MyLambda/index.handler

With this approach, when the serverless deploy command is executed, it pushes up the entire folder for Lambda's into every Lambda function, so you will get other lambda function code in a path in a lambda, which is silly.

Description

• What is the use case that should be solved. The more detail you describe this in the easier it is to understand for us.
  This should be solved by specifying a "path" property so we can chose, for MyLambda, the code is here, and thus this should be deployed to this lambda function only.

e.g.

functions:
BetPlacementLambda:
path: Lambdas/MyLambda
handler: index.handler

• If there is additional config how would it look

Similar or dependent issues: