add pallet macro kitchensink example/template (#14052)

* add pallet macro kitchen-sink pallet

* update

* Adds benchmarking setup

* Updates APIs

* Fixes benchmark

* Uses derive_impl for frame_system

* Adds benchmarks

* Minor update

* Adds license

* Adds examples crate

* ".git/.scripts/commands/fmt/fmt.sh"

* Update frame/examples/kitchensink/src/tests.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Update frame/examples/kitchensink/src/lib.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Update frame/examples/kitchensink/src/lib.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

* Addresses review comments

* Addresses review comments

* ".git/.scripts/commands/fmt/fmt.sh"

---------

Co-authored-by: Nikhil Gupta <17176722+gupnik@users.noreply.github.com>
Co-authored-by: command-bot <>
Co-authored-by: command-bot <ci@gitlab.parity.io>

substrate/Cargo.lock

@@ -6595,6 +6595,23 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-example-kitchensink"
+version = "4.0.0-dev"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "log",
+ "pallet-balances",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+]
+
 [[package]]
 name = "pallet-example-offchain-worker"
 version = "4.0.0-dev"
@@ -6612,6 +6629,17 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-examples"
+version = "4.0.0-dev"
+dependencies = [
+ "pallet-default-config-example",
+ "pallet-dev-mode",
+ "pallet-example-basic",
+ "pallet-example-kitchensink",
+ "pallet-example-offchain-worker",
+]
+
 [[package]]
 name = "pallet-fast-unstake"
 version = "4.0.0-dev"