bolter_flutter 6.0.0

based on bolter library extensions for manage widgets and state

[5.2.0] - 14 jul 2021

*5.2.0 use case refactoring *4.2.7 restorable remove, restoreRepository implementation *4.2.5 pop method bug fixing *3.1.1 bolter upd *3.0.6 loading notifier called null fix *3.0.0 improved useCaseContainer and layers separation *2.0.3 replaced .first operator to [0] for more safe calling exact route *2.0.0 added context 3and loading notifier to presenter *1.0.7+1 removed unnecessary global key dispose *0.0.1 initial version