add .editorconfig file #28

Job	Run time
Soundness / API breakage check	1m 47s
Samples / Windows (nightly-6.0)	3s
Samples / Windows (6.0)	1s
Samples / Windows (nightly-main)	1s
Samples / Linux (5.9)	1m 20s
Samples / Linux (5.10)	1m 17s
Soundness / Broken symlinks check	5s
Soundness / Documentation check	1m 14s
Soundness / Format check	32s
Samples / Linux (6.0)	1m 39s
Soundness / License headers check	5s
Samples / Linux (nightly-6.0)	1m 51s
Soundness / Shell check	35s
Soundness / Python lint check	6s
Samples / Linux (nightly-main)	1m 53s
Soundness / Unacceptable language check	2s
Soundness / YAML lint check	4s
Cxx interop / Cxx interop / Linux (5.9)	1m 17s
Cxx interop / Cxx interop / Windows (6.0)	2s
Cxx interop / Cxx interop / Linux (5.10)	1m 15s
Cxx interop / Cxx interop / Linux (6.0)	1m 28s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 39s
Cxx interop / Cxx interop / Windows (nightly-6.0)	1s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 40s
Cxx interop / Cxx interop / Windows (nightly-main)	2s
Unit tests / Unit tests / Linux (5.9)	2m 8s
Unit tests / Unit tests / Windows (6.0)	3s
Unit tests / Unit tests / Linux (5.10)	2m 13s
Unit tests / Unit tests / Linux (6.0)	2m 13s
Unit tests / Unit tests / Linux (nightly-6.0)	2m 13s
Unit tests / Unit tests / Windows (nightly-6.0)	1s
Unit tests / Unit tests / Linux (nightly-main)	2m 31s
Unit tests / Unit tests / Windows (nightly-main)	2s
	31m 23s

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