Enhancement: Minimize package size

[JacobCoffee]

Summary

The Litestar wheel is noticeably larger than others

• https://pypi.org/project/fastapi/#files 99.2kB
• https://pypi.org/project/Flask/#files 99.7kB
• https://pypi.org/project/litestar/#files 485kB
• https://pypi.org/project/emmett/#files 450kB
• https://pypi.org/project/sanic/#files 202kB
• https://pypi.org/project/django/#files 8MB (okay maybe not this one, just for comparison.)

And the installed size is painfully large

• Django: 44MB
• Flask: 10MB
• FastAPI: 16MB
• Litestar: 46MB
• Sanic: 14MB
• Quart: 14MB

Most of this is caused by faker and pygments, I guess.
It would be nice to do some things to shrink this, and also introduce a [minimal] target that removes things we add by default

Basic Example

python3 pip install litestar[minimal]

Drawbacks and Impact

• Probably not able to do anything "by default" until 3.x

Unresolved questions

Looking at the default dependencies, I'm not sure we can do anything until 3.x.. but the size is quite ridiculous.

dependencies = [
  "anyio>=3",
  "httpx>=0.22",
  "importlib-metadata; python_version < \"3.10\"",
  "importlib-resources>=5.12.0; python_version < \"3.9\"",
  "msgspec>=0.18.2",
  "multidict>=6.0.2",
  "polyfactory>=2.6.3",
  "pyyaml",
  "typing-extensions",
  "click",
  "rich>=13.0.0",
  "rich-click",
]

In my mind click, rich, rich-click, polyfactory, and maybe some more things could be taken out here for a minimal option (See below).

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[JacobCoffee]

This is already a thing: #2397