Add Jsxttribute walker method (#1312)
Add Jsxttribute walker method (#1312)


bolatovumar/tslint,RyanCavanaugh/tslint,andy-ms/tslint,berickson1/tslint,ScottSWu/tslint,ScottSWu/tslint,JoshuaKGoldberg/tslint,andy-ms/tslint,YuichiNukiyama/tslint,nchen63/tslint,YuichiNukiyama/tslint,YuichiNukiyama/tslint,IllusionMH/tslint,nchen63/tslint,bolatovumar/tslint,palantir/tslint,RyanCavanaugh/tslint,IllusionMH/tslint,RyanCavanaugh/tslint,mprobst/tslint,andy-hanson/tslint,palantir/tslint,JoshuaKGoldberg/tslint,andy-hanson/tslint,mprobst/tslint,palantir/tslint,nchen63/tslint,bolatovumar/tslint,mprobst/tslint,berickson1/tslint,ScottSWu/tslint,andy-ms/tslint,IllusionMH/tslint,berickson1/tslint,andy-hanson/tslint,JoshuaKGoldberg/tslint