doc/TODO.md: Revamp, update, roadmap for 1.0
doc/TODO.md: Revamp, update, roadmap for 1.0

Martinfx/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,vineetk1/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa