feat: copy .editorconfig during installation

# EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs

# editorconfig.org

root = true

indent_style = space

indent_size = 2

# We recommend you to keep these unchanged

end_of_line = lf

charset = utf-8

trim_trailing_whitespace = true

!package.json

!package-lock.json

!README.md

!scripts

!tsconfig.json

!tslint.json

npm install --save-dev @openstapps/configuration

```

## `.editorconfig`

This file is automatically copied to your project's root directory upon installation of this package. It tells your editor/IDE about basic settings for indentation and formatting.

## `tsconfig.json`

Create a `tsconfig.json` with the following content:

  "description": "A collection of configuration base files for StApps projects.",

  "scripts": {

    "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0",

    "install": "./scripts/postinstall.sh",

    "test": "echo \"Error: no test specified\" && exit 1"

  },

  "repository": {

#!/usr/bin/env sh

if [[ ! -d "$INIT_CWD/node_modules/@openstapps/configuration/" ]]; then

  exit;

fi;

echo "Copying .editorconfig from @openstapps/configuration to this project."

cp "$INIT_CWD/node_modules/@openstapps/configuration/.editorconfig" "$INIT_CWD/.editorconfig"