Code refactoring, bug fixes

[CuddlyBunion341]

Refactoring of Terrain related Code (and some other stuff)

Implementing the improved terrain showed some serious flaws with the organization of code shared between the client and server binaries and also revealed some serious bugs.

Started off from #33

Note

I know this is not a clean refactoring as there are some functionality changes made. I don't care this is my project, I will do whatever I want. Especially if it enables me to go faster.

Problem assessment

• Chunk and Chunk mangagement code was heavily duplicated between client and server.
• Chunk Serialization was only implemented on the client side causing server crashes when larger world chunk batches were requested.
• lib.rs was unmaintainable as it exploded in size with all sorts of code ranging from Networking Message declarations to serialization and Resource definitions.
• Networking related configuration for client / server was duplicated.

Key Changes

• Increased world size
• Code such as ChunkManager, Chunk, BlockId and such have been moved to this new namespace (shared).
• Chunk Serialization has been fixed.
• A shared module has been created which is imported as lib via rsmc.
• All exports from the shared namespace are automatically available in both binaries via use wildcard in prelude.
• The lib:: prefix has been dropped as it is unnecessary.
• Removed the i32 parameterized chunk initialization method. (Maybe this should be reverted?) 6e64d22

Notes

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[CuddlyBunion341]

Not sure if I like the method "overload" with the integer param for the render distance more than this vector definition..