Ensure the base game has minimal amount needed of code and works well

[quirinpa]

This PR is an attempt to reduce the core game code size drastically. By removing:

• Commands which are deemed like not part of core functionality
• All mob skeletons which are not strictly needed
• All spells and elements which are not needed in the base game.
• Trees too - Let's not generate them by default.
• Biome generation should be based on space time programming and not built in
• Ensure skeletons are programmable
• Fix core bugs
• Ensure we can load modules using a config file and or runtime space programming.
• wts strings must also be programmable
• Can a user we customize map generation too?