Add .editorconfig to help with formatting #787

Job	Run time
Sign artifacts (ubuntu-latest, 11, 3.9.6)	34s
Build (ubuntu-latest, 11, 3.8.8)	4m 2s
Javadocs (ubuntu-latest, 11, 3.9.6)	25s
Build (ubuntu-latest, 11, 3.9.6)	4m 7s
Build (ubuntu-latest, 17, 3.8.8)	3m 39s
Build (ubuntu-latest, 17, 3.9.6)	3m 45s
Build (ubuntu-latest, 21, 3.8.8)	3m 45s
Build (ubuntu-latest, 21, 3.9.6)	3m 44s
Build (windows-latest, 11, 3.8.8)	5m 16s
Build (windows-latest, 11, 3.9.6)	5m 21s
Build (windows-latest, 17, 3.8.8)	5m 9s
Build (windows-latest, 17, 3.9.6)	5m 16s
Build (windows-latest, 21, 3.8.8)	5m 27s
Build (windows-latest, 21, 3.9.6)	5m 14s
Build (macos-latest, 11, 3.8.8)	1m 10s
Build (macos-latest, 11, 3.9.6)	1m 1s
Build (macos-latest, 17, 3.8.8)	1m 2s
Build (macos-latest, 17, 3.9.6)	2s
Build (macos-latest, 21, 3.8.8)	1s
Build (macos-latest, 21, 3.9.6)	1s
	59m 1s

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