Added Client in treeni Data Management

add_client.rb

client = Client.new(name: 'Treeni')
client.save!

files = Dir["app/models/*.rb"]

models = files.map { |file| file.split('/').last.sub(/\.rb/, '').camelize.constantize }.select { |i|  i != Client }

models.each { |model| model.update_all(client_id: client._id) }