Tutorials/Examples under a different namespace

[MasterSkepticista]

To ensure velocity of changes/features in mainline, updating examples in parallel to comply with the release would consume time.

Suggestion is to transition tutorials/examples under openfl-examples repository, which has its release tags tied to the last tested working version of OpenFL even if the develop branch treads ahead to address priority features that may break some examples.

[MasterSkepticista]

@psfoley @mansishr @shreyasnc1 @igor-davidyuk @acharyasunil

[mkurisoo]

I agree, tags on the tutorials of the last tested working version of OpenFL seems like a good idea.