BIGTOP-1604.  Create MAINTAINERS.txt file.
BIGTOP-1604.  Create MAINTAINERS.txt file.

amitkabraiiit/bigtop,alaunay/bigtop,c0s/bigtop,arenadata/bigtop,mombergm/bigtop,minggLu/bigtop,oflebbe/bigtop,aelent/bigtop,JunHe77/bigtop,odpi/bigtop,evans-ye/bigtop,sekikn/bigtop,panagiotisl/bigtop,jagatsingh/bigtop,Guavus/bigtop,odpi/bigtop,SwathiMystery/bigtop,apache/bigtop,panagiotisl/bigtop,juju-solutions/bigtop,amitkabraiiit/bigtop,juju-solutions/bigtop,welikecloud/bigtop,aelent/bigtop,evans-ye/bigtop,JunHe77/bigtop,shiroyp/bigtop,sekikn/bigtop,JunHe77/bigtop,mbalassi/bigtop,sekikn/bigtop,apache/bigtop,amitkabraiiit/bigtop,rnowling/bigtop,shiroyp/bigtop,alaunay/bigtop,apache/bigtop,welikecloud/bigtop,mbalassi/bigtop,c0s/bigtop,panagiotisl/bigtop,belvedere-trading/bigtop,JunHe77/bigtop,evans-ye/bigtop,oflebbe/bigtop,apurtell/bigtop,arenadata/bigtop,youngwookim/bigtop,apache/bigtop,mbalassi/bigtop,mombergm/bigtop,jagatsingh/bigtop,aelent/bigtop,Altiscale/bigtop,jagatsingh/bigtop,rnowling/bigtop,Guavus/bigtop,mombergm/bigtop,odpi/bigtop,jayunit100/bigtop,jayunit100/bigtop,apache/bigtop,minggLu/bigtop,sekikn/bigtop,youngwookim/bigtop,b-long/bigtop,jayunit100/bigtop,rnowling/bigtop,arenadata/bigtop,SwathiMystery/bigtop,welikecloud/bigtop,mbalassi/bigtop,belvedere-trading/bigtop,alaunay/bigtop,oflebbe/bigtop,youngwookim/bigtop,panagiotisl/bigtop,sekikn/bigtop,Altiscale/bigtop,tomz/bigtop,alaunay/bigtop,tomz/bigtop,juju-solutions/bigtop,tomz/bigtop,belvedere-trading/bigtop,arenadata/bigtop,juju-solutions/bigtop,shiroyp/bigtop,youngwookim/bigtop,odpi/bigtop,b-long/bigtop,evans-ye/bigtop,minggLu/bigtop,b-long/bigtop,Guavus/bigtop,welikecloud/bigtop,Altiscale/bigtop,apurtell/bigtop,Guavus/bigtop,Altiscale/bigtop,apurtell/bigtop,SwathiMystery/bigtop,c0s/bigtop