EnvironmentListCommand does need the currentEnvironment property.
EnvironmentListCommand does need the currentEnvironment property.

Plus: simplify DomainAddCommand

OriPekelman/platformsh-cli,Fredplais/platformsh-cli,mglaman/platformsh-cli,pjcdawkins/platformsh-cli,supriyantomaftuh/platformsh-cli,mglaman/platformsh-cli,platformsh/platformsh-cli,pjcdawkins/platformsh-cli,OriPekelman/platformsh-cli,Fredplais/platformsh-cli,dudenhofer/platform-cli,platformsh/platformsh-cli,pjcdawkins/platformsh-cli,OriPekelman/platformsh-cli,mglaman/platformsh-cli,supriyantomaftuh/platformsh-cli,supriyantomaftuh/platformsh-cli,dudenhofer/platform-cli,platformsh/platformsh-cli,Fredplais/platformsh-cli