Version 105

Release date: 2020-09-19

Big new feature:

• Implemented first two types of Achievement: Cookie Amount achievements
  & Cookies per Second achievements.
  • Experimenting with the Observer design pattern for this one:
    added observer pattern style notifications on Wallet->incrementCookieAmount

Improvements:

• Moved over construction of objects to main.cpp, now
  better dependency injection.
• Removed screen rendering code from
  main game loop into its own View class,
  each View can have one or more Views,
  each view has at least a render() and handleInput()
  method. Views could have views as wel, as subviews.
• Display Cookienumbers more like javascript game,
  with some numbers behind the comma.
• Added coding style check (clang-format)

Bug fixes:

• Fix segfault when threading went haywire on starting.
• Fix crash when loading savegame with space in its name.