Optimize the dependency size of each crate

[CGodiksen]

The current dependencies are somewhat optimized to avoid large external dependencies and to avoid dependencies when functionality can be implemented without it, but the large amount of cross-dependencies between crates has a large cost in the size of the binaries.

We should try to optimize the crate structure and the external dependencies to minimize the size of the resulting binaries.

[skejserjensen]

I tried to compile modelardb_client before and after #421 to see how big the impact of this is since that PR adds Apache DataFusion to modelardb_client through modelardb_embedded without actually using it. The results show that this makes modelardb_embedded significantly slower to compile and that the resulting binary becomes significantly larger.

	Compile Time	Binary Size
Before #421	01m 31s	3.20M
After #421	21m 08s	33.00M