Add .editorconfig and .gitattributes to this repo

[domenic]

No description provided.

[foolip]

(Was closed because I merged the history of another repo into this one.)

[shreyateeza]

@foolip @domenic Can you please tell how can these files be added to this repo so that I can take this issue.

[annevk]

@shreyateeza #61 has some guidance, but in general I think nobody is quite clear on how to get this resolved. 😟

[foolip]

I think we need to add file extensions to some files, and then make the existing files conform with the rules that are added.