Basic support for uploading Node.js function

Added basic support for uploading Node.js function with zip-archived artifact.

• Install Node.js, verify npm is also available
• Install NodeJS plugin to the IntelliJ IDEA: start the IntelliJ IDEA, open Preferences, navigate to the Plugins tab, hit the "Browse repositories..." button, search and select NodeJS, hit "Install" button and then "Restart IDEA" to apply changes.
• On you disk - create a folder for a project for the Node.js AWS Lambda function, navigate to this folder
• run commands to install aws-sdk modules and create empty file "index.js" within "src" folder

npm install aws-sdk
mkdir src
touch src/index.js

(in Windows instead of "touch": echo "" > src/index.js )

• In IntelliJ IDEA open the project, selecting the folder, created above
• In the index file copy paste the code:

exports.handler = (event, context, callback) => {
    callback(null, "some success message with a name " + event.name);
    // or
    // callback("some error type");
}

• Open the Project Structure, select Artifacts section on the left

• Hit the "+" button to add a new artifact, choose a type "Other"

• Specify a name of the artifact, optionally - tick the checkbox "Include in the project build"

• In the "Output Layout" tab - hit the icon "Create Archive" (a second one next to the icon "Folder with +")

• In the dialog - enter the archive name, with an extension ".zip", hit "Ok"

• Right click on the added archive-name, in the menu - select "Create Directory", enter "node_modules", hit "Ok"

• Right click on the added directory name, in the menu - select "Add Copy of", select "Directory Content", choose the folder "node_modules" in the project's folder, hit "Open"

• Similar way - add a reference to the folder "src" in the project's folder

• Right click on the archive-name, in the menu - select "Add Copy of", select "File", choose a file "package-lock.json" in the project's folder, hit "Open"

• Rebuld the project and an artifact (if not build automatically). Check if the artifact contains the file in the "out" folder of the project

• Refresh the "Artifacts" list in the "Connector for AWS Lambda" plugin tab, select the artifact and a function (with NodeJS runtime), where it should be uploaded

• In the "Handler" field - enter "src/index.handler", where "src" is a project's folder "src" (if used), "index" - the name of the js-file, where the function is located, "handler" - a name of JavaScript funtion (in this example it is second part of "exports.handler")

• Hit the button "Upload function" in the plugin form

• Test the function - open the "Run Test" tab, hit the button "Run test of the function"