feat(logging): cloudwatch logging plugin to implement logging plugin interface #1246

Job	Run time
test / test-dart-vm (3.0.1)	2m 21s
test / test-dart-vm (stable)	3m 40s
native_test / test-dart-native (macos-latest)	3m 42s
dart2js_test / test-dart-2js (3.0.1, chrome)	3m 5s
native_test / test-dart-native (windows-latest)	3m 13s
dart2js_test / test-dart-2js (3.0.1, firefox)	3m 19s
dart2js_test / test-dart-2js (stable, chrome)	3m 50s
dart2js_test / test-dart-2js (stable, firefox)	3m 51s
ddc_test / test-dart-ddc (3.0.1, chrome)	3m 26s
ddc_test / test-dart-ddc (3.0.1, firefox)	3m 37s
ddc_test / test-dart-ddc (stable, chrome)	3m 51s
ddc_test / test-dart-ddc (stable, firefox)	5m 16s
	43m 11s

Provide feedback