Rust

Trim down `BallistaConfig` (#1108) #148

Job	Run time
Lint	30s
Test on windows-latest Rust stable	6m 53s
Build Libraries on AMD64 Rust stable	14m 19s
Test on macos-latest Rust stable	3m 58s
Docker	28s
Test Ballista on AMD64 Rust stable	5m 30s
Test Workspace on AMD64 Rust stable	9m 44s
Clippy (amd64, stable)	3m 8s
verify benchmark results (amd64) (amd64, stable)	10m 27s
Check Cargo.toml formatting (amd64, stable)	1m 34s
	56m 31s

Provide feedback