Flame is now dll. Welcome window

This update without bug fixes. I don't want to fix bugs anymore. I want to create new ones

[breaking change] Flame is now a dll and is loaded from custom PATCH.dll

• The reasons for these changes are described in the Discord channel message
• Join link: https://discord.gg/RvrQpCFUZc

[new] Flame can now be built in debug mode and be debugged in your favorite IDE
[new] added welcome window with settings. You no longer have to manually edit the Flame settings file
[new] added resources unpacking and parsing progress window

[change] moved Flame loading resources to PATCH.dll since this dll is now loading Flame.dll
[change] StackWalker has been reworked
[added] big screen resolution support

[new] flame config was split to sections

• Game progress section is now saved to Data/Save/Flame-GameProgress.txt file
• This file is picked up by Steam and GOG cloud system for synchronizing game progress

I'm too lazy to document all the minor changes in releases. I'll only describe the significant ones. For details, see the commits