Create codecov.yml #796

Job	Run time
linux_debug_arm64_coverage / build	2m 0s
linux_debug_arm64 / build	1m 57s
linux_arm64_release_coverage / build	2m 3s
linux_debug / build	54s
linux_debug_coverage / build	1m 21s
linux_debug_sanitizers / build	1m 2s
linux_release / build	1m 10s
linux_release_arm64 / build	1m 58s
linux_release_coverage / build	1m 1s
linux_release_sanitizers / build	1m 23s
linux_release_scan_build / build	1m 15s
macos_debug / build	3m 25s
macos_debug_coverage / build	5m 43s
macos_debug_sanitizers / build	3m 36s
macos_release / build	3m 6s
macos_release_coverage / build	3m 32s
macos_release_sanitizers / build	4m 3s
windows_debug / build	5m 8s
windows_release / build	5m 15s
finish	2s
	49m 54s

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