[JURASSIC AMULET] adding new commands to the CLI and patching two operators

src/main/java/cli/Action.java

src/main/java/tmltranslator/mutations/AddTaskMutation.java

...main/java/tmltranslator/mutations/DiplodocusMutation.java

...main/java/tmltranslator/mutations/RemoveTaskMutation.java

src/main/java/tmltranslator/mutations/TaskMutation.java