Add boost-balance script as submodule

[MatofSteel1]

• Script that balances teams via boost distribution
• Agent ID: nullptrRL/boost-balance
• Rust-based RLBot v5 script

[VirxEC]

Was the bob.toml AI-generated? AI has no idea what Bob is, nor how to use it. This:

[metadata]
name = "Boost Balance"
short_name = "boost-balance"
version = "0.1.0"

[builders.default]
dockerfile = "Dockerfile"
context = "."
tag = "boost-balance"

[package]
zip_exclude = ["target/", ".git/", ".gitignore", "Cargo.lock", "*.md"]

[[package.copy]]
source = "target/release/boost_balance_script"
destination = "boost_balance_script"

[[package.copy]]
source = "script.toml"
destination = "script.toml"

[[package.copy]]
source = "logo.png"
destination = "logo.png"

Has none of what Bob actually needs to build a Rust project. There is a repo with example on how to use Bob linked in the botpack's README. For Rust projects, you're going to want https://github.com/swz-git/bob-example/blob/master/rust_example/bob.toml - which looks something like this:

[[config]]
project_name = "rust_agent_example"
bot_configs = ["./bot.toml"]

[config.builder_config]
builder_type = "rust"
targets = ["x86_64-pc-windows-gnu", "x86_64-unknown-linux-musl"]
bin_name = "rust_example"

[VirxEC]

Also, being a Rust project, you don't need a Dockerfile.

[VirxEC]

What's this Greg bot in the source tree? https://github.com/MatofSteel1/boost-balance/blob/85b88539783f7b9a7620291645736b8d1a2fd9a8/rlbot/bot.toml