Create sp-weights crate to store weight primitives (#12219)

* Create sp-weights crate to store weight primitives

* Fix templates

* Fix templates

* Fixes

* Fixes

* cargo fmt

* Fixes

* Fixes

* Use deprecated type alias instead of deprecated unit types

* Use deprecated subtraits instead of deprecated hollow new traits

* Fixes

* Allow deprecation in macro expansion

* Add missing where clause during call macro expansion

* cargo fmt

* Fixes

* cargo fmt

* Fixes

* Fixes

* Fixes

* Fixes

* Move FRAME-specific weight files back to frame_support

* Fixes

* Update frame/support/src/dispatch.rs

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

* Update frame/support/src/dispatch.rs

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

* Update frame/support/src/dispatch.rs

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

* Add missing header

* Rewrite module docs

* Fixes

* Fixes

* Fixes

* Fixes

* cargo fmt

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

substrate/bin/node/runtime/src/lib.rs

@@ -28,6 +28,7 @@ use frame_election_provider_support::{
 };
 use frame_support::{
 	construct_runtime,
+	dispatch::DispatchClass,
 	pallet_prelude::Get,
 	parameter_types,
 	traits::{
@@ -37,7 +38,7 @@ use frame_support::{
 	},
 	weights::{
 		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-		ConstantMultiplier, DispatchClass, IdentityFee, Weight,
+		ConstantMultiplier, IdentityFee, Weight,
 	},
 	PalletId, RuntimeDebug,
 };