Participation Lottery Pallet (#7221)

* Basic design

* start adding tests

* finish tests

* clean up crates

* use call index for match

* finish benchmarks

* add to runtime

* fix

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_lottery --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/lottery/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* more efficient storage

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_lottery --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/lottery/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Update lib.rs

* Update bin/node/runtime/src/lib.rs

* trait -> config

* add repeating lottery

* new benchmarks

* fix build

* move trait for warning

* feedback from @xlc

* add stop_repeat

* fix

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_lottery --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/lottery/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* Support static calls

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_lottery --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/lottery/src/weights.rs --template=./.maintain/frame-weight-template.hbs

* fix test

* add loop to mitigate modulo bias

* Update weights for worst case scenario loop

* Initialize pot with ED

* cargo run --release --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_lottery --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/lottery/src/weights.rs --template=./.maintain/frame-weight-template.hbs

Co-authored-by: Parity Benchmarking Bot <[email protected]>