deps: use polkadot-sdk umbrella crate (#1786)

* deps: unify usage of polkadot-sdk crates

* cargo fmt

* fix macro crate

* make tests compile

* fix more nits

* fix doc tests

* fix more nits

* more nits

* core: remove polkadot-sdk/std

* cargo fmt

* remove polkadot-sdk/std by default

* Update metadata/Cargo.toml

* remove more std

* Update Cargo.toml

core/src/utils/account_id.rs

@@ -175,6 +175,7 @@ impl core::str::FromStr for AccountId32 {
 #[cfg(feature = "substrate-compat")]
 mod substrate_impls {
     use super::*;
+    use polkadot_sdk::{sp_core, sp_runtime};
 
     impl From<sp_runtime::AccountId32> for AccountId32 {
         fn from(value: sp_runtime::AccountId32) -> Self {
@@ -199,8 +200,8 @@ mod substrate_impls {
 mod test {
     use super::*;
 
-    use sp_core::crypto::Ss58Codec;
-    use sp_keyring::AccountKeyring;
+    use polkadot_sdk::sp_core::{self, crypto::Ss58Codec};
+    use polkadot_sdk::sp_keyring::AccountKeyring;
 
     #[test]
     fn ss58_is_compatible_with_substrate_impl() {

core/src/utils/multi_address.rs

@@ -48,6 +48,7 @@ impl<AccountId, AccountIndex> From<AccountId> for MultiAddress<AccountId, Accoun
 #[cfg(feature = "substrate-compat")]
 mod substrate_impls {
     use super::{super::AccountId32, *};
+    use polkadot_sdk::sp_runtime;
 
     impl<N> From<sp_runtime::AccountId32> for MultiAddress<AccountId32, N> {
         fn from(value: sp_runtime::AccountId32) -> Self {

core/src/utils/multi_signature.rs

@@ -24,6 +24,7 @@ pub enum MultiSignature {
 #[cfg(feature = "substrate-compat")]
 mod substrate_impls {
     use super::*;
+    use polkadot_sdk::{sp_core, sp_runtime};
 
     impl From<sp_runtime::MultiSignature> for MultiSignature {
         fn from(value: sp_runtime::MultiSignature) -> Self {