Added copyright
Added copyright

Signed-off-by: GabrielNicolasAvellaneda <83a8591a9a34d9745961eaad83d1d871cc3e5445@gmail.com>

GabrielNicolasAvellaneda/boundary-plugin-http-check,boundary/meter-plugin-http-check,boundary/boundary-plugin-http-check,jdgwartney/boundary-plugin-http-check