Add .asf.yaml. (#9083)
Add .asf.yaml. (#9083)

Based on the docs at https://cwiki.apache.org/confluence/display/INFRA/.asf.yaml+features+for+git+repositories.
Fokko/druid,pjain1/druid,mghosh4/druid,Fokko/druid,gianm/druid,pjain1/druid,mghosh4/druid,himanshug/druid,monetate/druid,himanshug/druid,pjain1/druid,gianm/druid,Fokko/druid,mghosh4/druid,gianm/druid,jon-wei/druid,Fokko/druid,himanshug/druid,himanshug/druid,monetate/druid,pjain1/druid,Fokko/druid,himanshug/druid,pjain1/druid,monetate/druid,pjain1/druid,implydata/druid,leventov/druid,implydata/druid,mghosh4/druid,jon-wei/druid,monetate/druid,druid-io/druid,leventov/druid,gianm/druid,druid-io/druid,monetate/druid,druid-io/druid,implydata/druid,jon-wei/druid,nishantmonu51/druid,nishantmonu51/druid,jon-wei/druid,druid-io/druid,leventov/druid,Fokko/druid,jon-wei/druid,gianm/druid,nishantmonu51/druid,monetate/druid,nishantmonu51/druid,monetate/druid,jon-wei/druid,implydata/druid,implydata/druid,nishantmonu51/druid,nishantmonu51/druid,mghosh4/druid,mghosh4/druid,druid-io/druid,pjain1/druid,jon-wei/druid,Fokko/druid,implydata/druid,gianm/druid,leventov/druid,nishantmonu51/druid,leventov/druid,gianm/druid,mghosh4/druid