.editoconfig

### Description

There used to be a .editorconfig plugin for the previous version of Netbeans but it is not more maintained.
https://github.com/welovecoding/editorconfig-netbeans
https://issues.apache.org/jira/browse/NETBEANS-1287

Standardization of editor configuration should be a feature of the Netbeans itself, instead a plugin.

### Use case/motivation

EditorConfig helps maintain consistent coding styles for multiple developers working on the same project across various editors and IDEs. The EditorConfig project consists of a file format for defining coding styles and a collection of text editor plugins that enable editors to read the file format and adhere to defined styles. EditorConfig files are easily readable and they work nicely with version control systems.

### Related issues

_No response_

### Are you willing to submit a PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow the Apache Software Foundation's [Code of Conduct](https://www.apache.org/foundation/policies/conduct.html)

Start by reviewing the linked editorconfig-netbeans plugin and NETBEANS-1287 issue to understand the prior implementation and requested behavior. Identify the NetBeans editor integration point and define the supported EditorConfig scope; done requires an agreed design and acceptance criteria for native support.

Written by the indexing model from the issue text.