histedit: add tostate method to histedit action the format of rules that we store in state file format is different from the rule format that we present to users. We need a way of dumping action to state file.

histedit: remove makedesc It's a dead code now.

histedit: use torule instead of makedesc in ruleeditor

histedit: add torule method to histedit action objects To make histedit action objects responsible for understanding the format of their action lines we are adding a torule method which for a histedit action will return a string which can be saved in histedit state or shown in text editor when editing the plan.

histedit: add verify() to histeditaction This commits splits the parsing of the histedit rule from its semantic analysis. It's necessary because sometimes we want to do first without doing the former (reading the histedit state).

histedit: add addhisteditaction decorator This decorator will is allowing us to move the registering the action in actiontable closer to the action code. Also it is storing the verb inside histedit action so the action is aware of the verb needed to trigger it.