Based on {@link laas.friends.cosmopen.graphAnalysis} and {@link
laas.friends.cosmopen.interpreter}, this package implements
commands that can be used in the interpreter. All commands are
subclass of the class {@link
laas.friends.cosmopen.interpreter.Command Command} that is found
in the {@link laas.friends.cosmopen.interpreter interpreter}
package. The class {@link
laas.friends.cosmopen.commands.GraphVariable GraphVariable} is
responsible for the remaining bookkeeping of variables and value.