Update escenarios y otras cosas

.../Capturas e imagenes/Escenario 1/Diagrama-Escenario 1.png

.../Capturas e imagenes/Escenario 2/Diagrama-Escenario 2.png

.../Capturas e imagenes/Escenario 3/Diagrama-Escenario 3.png

.../Capturas e imagenes/Escenario 4/Diagrama-Escenario 4.png

docs/Capturas e imagenes/Generales/Diagrama-Arquitectura.png

docs/conf_router

manage/scripts/migrate_instance.sh

src/router/network-scripts/ifcfg-eth0

src/router/network-scripts/ifcfg-eth1

src/router/network-scripts/ifcfg-eth2

src/router/network-scripts/ifcfg-eth3

src/router/network-scripts/ifcfg-eth3.100

src/router/network-scripts/ifcfg-eth3.101

src/router/network-scripts/ifcfg-eth3.bk