client: Re-add missing license header in client/cloudstack-ui.launch
client: Re-add missing license header in client/cloudstack-ui.launch

Partially reverts Min's change; e7fa1a86fb

Signed-off-by: Rohit Yadav <0fa72ca37c4b5fa62675187ce32ea6c9f842fd52@apache.org>

jcshen007/cloudstack,wido/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,wido/cloudstack,DaanHoogland/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,jcshen007/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver,resmo/cloudstack,resmo/cloudstack,mufaddalq/cloudstack-datera-driver,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,GabrielBrascher/cloudstack,resmo/cloudstack,jcshen007/cloudstack,GabrielBrascher/cloudstack,wido/cloudstack,GabrielBrascher/cloudstack,mufaddalq/cloudstack-datera-driver,jcshen007/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,DaanHoogland/cloudstack,DaanHoogland/cloudstack,jcshen007/cloudstack,resmo/cloudstack,resmo/cloudstack,resmo/cloudstack