Add codecov for minio.
Add codecov for minio.

koolhead17/minio,brendanashworth/minio,dutchcoders/minio,dutchcoders/minio,rushenn/minio,harshavardhana/minio,aead/minio,aead/minio,jimjag/minio,aead/minio,aead/minio,dvstate/minio,NitishT/minio,aead/minio,luomeiqin/minio,dutchcoders/minio,brendanashworth/minio,aead/minio,dvstate/minio,abperiasamy/minio,mf-00/newgo,koolhead17/minio,aead/minio,harshavardhana/minio,rushenn/minio,harshavardhana/minio,vadmeste/minio,hackintoshrao/minio,rushenn/minio,harshavardhana/minio,NitishT/minio,hackintoshrao/minio,dvstate/minio,rushenn/minio,dutchcoders/minio,vadmeste/minio,jimjag/minio,luomeiqin/minio,krishnasrinivas/minio,NitishT/minio,fwessels/minio,krisis/minio,balamurugana/minio,alexellis/minio,abperiasamy/minio,krishnasrinivas/minio,krishnasrinivas/minio-daily,krishnasrinivas/minio,jimjag/minio,brendanashworth/minio,donatello/minio,hackintoshrao/minio,dvstate/minio,harshavardhana/minio,luomeiqin/minio,mf-00/newgo,jimjag/minio,aead/minio,minio/minio,donatello/minio,abperiasamy/minio,krishnasrinivas/minio,fwessels/minio,NitishT/minio,fwessels/minio,krisis/minio,fwessels/minio,hackintoshrao/minio,brendanashworth/minio,harshavardhana/minio,krishnasrinivas/minio-daily,harshavardhana/minio,alexellis/minio,abperiasamy/minio,minio/minio,luomeiqin/minio,harshavardhana/minio,balamurugana/minio