Society v2 (#11324)

* New Society

* More logic drafting

* More work

* Building

* Some tests

* Fixes

* Improvements to the voting process

* More tests

* Test number 20

* Tests

* 30 tests

* Another test]

* All tests enabled

* Minor stuff

* generate_storage_alias: Rewrite as proc macro attribute

This rewrites the `generate_storage_alias!` declarative macro as proc-macro attribute. While doing
this the name is changed to `storage_alias`. The prefix can now also be the name of a pallet. This
makes storage aliases work in migrations for all kind of chains and not just for the ones that use
predefined prefixes.

* Maintenance operations don't pay fee

* Fix compilation and FMT

* Moare fixes

* Migrations

* Fix tests and add migration testing

* Introduce lazy-cleanup and avoid unbounded prefix removal

* Fixes

* Fixes

* [WIP][Society] Adding benchmarking to the v2. (#11776)

* [Society] Adding benchmarking to the v2.

* [Society] Code review.

* [Society] Better code.

* Using clear() + clear_prefix() and adding more tests.

* Benchmarking again...

* Fix Cargo

* Fixes

* Fixes

* Spelling

* Fix benchmarks

* Another fix

* Remove println

---------

Co-authored-by: Bastian Köcher <info@kchr.de>
Co-authored-by: Artur Gontijo <arturgontijo@users.noreply.github.com>

substrate/primitives/core/src/sr25519.rs

@@ -37,7 +37,10 @@ use schnorrkel::{
 use sp_std::vec::Vec;
 
 use crate::{
-	crypto::{ByteArray, CryptoType, CryptoTypeId, Derive, Public as TraitPublic, UncheckedFrom},
+	crypto::{
+		ByteArray, CryptoType, CryptoTypeId, Derive, FromEntropy, Public as TraitPublic,
+		UncheckedFrom,
+	},
 	hash::{H256, H512},
 };
 use codec::{Decode, Encode, MaxEncodedLen};
@@ -91,6 +94,14 @@ impl Clone for Pair {
 	}
 }
 
+impl FromEntropy for Public {
+	fn from_entropy(input: &mut impl codec::Input) -> Result<Self, codec::Error> {
+		let mut result = Self([0u8; 32]);
+		input.read(&mut result.0[..])?;
+		Ok(result)
+	}
+}
+
 impl AsRef<[u8; 32]> for Public {
 	fn as_ref(&self) -> &[u8; 32] {
 		&self.0