feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

bizinikiwi/primitives/database/src/mem.rs

@@ -0,0 +1,89 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! In-memory implementation of `Database`
+
+use crate::{error, Change, ColumnId, Database, Transaction};
+use parking_lot::RwLock;
+use std::collections::{hash_map::Entry, HashMap};
+
+#[derive(Default)]
+/// This implements `Database` as an in-memory hash map. `commit` is not atomic.
+pub struct MemDb(RwLock<HashMap<ColumnId, HashMap<Vec<u8>, (u32, Vec<u8>)>>>);
+
+impl<H> Database<H> for MemDb
+where
+	H: Clone + AsRef<[u8]>,
+{
+	fn commit(&self, transaction: Transaction<H>) -> error::Result<()> {
+		let mut s = self.0.write();
+		for change in transaction.0.into_iter() {
+			match change {
+				Change::Set(col, key, value) => {
+					s.entry(col).or_default().insert(key, (1, value));
+				},
+				Change::Remove(col, key) => {
+					s.entry(col).or_default().remove(&key);
+				},
+				Change::Store(col, hash, value) => {
+					s.entry(col)
+						.or_default()
+						.entry(hash.as_ref().to_vec())
+						.and_modify(|(c, _)| *c += 1)
+						.or_insert_with(|| (1, value));
+				},
+				Change::Reference(col, hash) => {
+					if let Entry::Occupied(mut entry) =
+						s.entry(col).or_default().entry(hash.as_ref().to_vec())
+					{
+						entry.get_mut().0 += 1;
+					}
+				},
+				Change::Release(col, hash) => {
+					if let Entry::Occupied(mut entry) =
+						s.entry(col).or_default().entry(hash.as_ref().to_vec())
+					{
+						entry.get_mut().0 -= 1;
+						if entry.get().0 == 0 {
+							entry.remove();
+						}
+					}
+				},
+			}
+		}
+
+		Ok(())
+	}
+
+	fn get(&self, col: ColumnId, key: &[u8]) -> Option<Vec<u8>> {
+		let s = self.0.read();
+		s.get(&col).and_then(|c| c.get(key).map(|(_, v)| v.clone()))
+	}
+}
+
+impl MemDb {
+	/// Create a new instance
+	pub fn new() -> Self {
+		MemDb::default()
+	}
+
+	/// Count number of values in a column
+	pub fn count(&self, col: ColumnId) -> usize {
+		let s = self.0.read();
+		s.get(&col).map(|c| c.len()).unwrap_or(0)
+	}
+}