Make `composer` be the first param in gadgets #424

Job	Run time
Build Benchmarks	1m 13s
Dusk Analyzer / Dusk Analyzer	8s
Check encryption compiles without zk / Run tests	30s
Code Analysis / Clippy Check	11s
Code Analysis / Rust Format	7s
Tests all / Run tests	1m 1s
	3m 10s

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