updated LocalContext builder methods
fixed 'watch_par' result type in grammar

now it requires custom validation though
introducing rdo.lib notification system

quite a simple one, this
rdo.lib Results and ResultManager simplified
refactored Simulator with notification system support
model's resource types have notifier now

for now it allows only to subscribe to resource deletion, parameters' state subscriptions should be considered too
also, temporary resources now provide methods returning last created/deleted resource (for results and whoever else)