Refactor DKG parameters into a `DkgParams` #511

Job	Run time
check	32s
yarn-test (stable, wasm32-unknown-unknown)	1m 35s
wasm-test (1.67, wasm32-unknown-unknown)	4m 31s
python-test (stable, wasm32-unknown-unknown, 3.12)	1m 24s
wasm-test (stable, wasm32-unknown-unknown)	2m 19s
test (x86_64-unknown-linux-gnu, 1.67)	5m 9s
test (x86_64-unknown-linux-gnu, stable)	2m 25s
compile-benchmarks	2m 44s
codecov	4m 32s
benchmark	0s
	25m 11s

Provide feedback