Rename commands package to templates.

...ore/src/tools/descartes/prisma/core/ApplicationModel.java

...tools/descartes/prisma/core/templates/CommandContext.java

...c/tools/descartes/prisma/core/templates/ModelCommand.java

.../core/templates/deployment/DeploymentContextTemplate.java

.../prisma/core/templates/deployment/DeploymentTemplate.java

...a/core/templates/repository/AssemblyConnectorCommand.java

...sma/core/templates/repository/AssemblyContextCommand.java

...isma/core/templates/repository/BasicComponentCommand.java

.../core/templates/repository/CompositeComponentCommand.java

...es/prisma/core/templates/repository/InterfaceCommand.java

...e/templates/repository/InterfaceProvidingRoleCommand.java

...e/templates/repository/InterfaceRequiringRoleCommand.java

...lates/repository/ProvidingDelegationConnectorCommand.java

...s/prisma/core/templates/repository/RepositoryCommand.java

...core/templates/repository/RepositoryComponentCommand.java

...lates/repository/RequiringDelegationConnectorCommand.java

...es/prisma/core/templates/repository/SignatureCommand.java

...es/resourcelandscape/ComputingInfrastructureTemplate.java

.../core/templates/resourcelandscape/DataCenterTemplate.java

...ates/resourcelandscape/DistributedDataCenterTemplate.java