Fix bug community combo in certification dialog not on current community

New dialog created : PasswordDialogAsker
Needs to be passed throught the Widgets managing the current account

Fx bug in wot if multiple certifications
Don't refuse certification in wot if one already exists

Refactor wot to better handle node/arc metadata

todo: implement signature function

todo: arc expire date and color based on currency certifications config

browsing and "me" button are working
todo: search function and arc color based on currency certifications config