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/frame/examples/basic/src/lib.rs

@@ -273,9 +273,9 @@
 
 use codec::{Decode, Encode};
 use frame_support::{
-	dispatch::DispatchResult,
+	dispatch::{ClassifyDispatch, DispatchClass, DispatchResult, Pays, PaysFee, WeighData},
 	traits::IsSubType,
-	weights::{ClassifyDispatch, DispatchClass, Pays, PaysFee, WeighData, Weight},
+	weights::Weight,
 };
 use frame_system::ensure_signed;
 use log::info;

substrate/frame/examples/basic/src/tests.rs

@@ -19,9 +19,10 @@
 
 use crate::*;
 use frame_support::{
-	assert_ok, parameter_types,
+	assert_ok,
+	dispatch::{DispatchInfo, GetDispatchInfo},
+	parameter_types,
 	traits::{ConstU64, OnInitialize},
-	weights::{DispatchInfo, GetDispatchInfo},
 };
 use sp_core::H256;
 // The testing primitives are very useful for avoiding having to work with signatures