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/test-utils/runtime/res/README.md

@@ -0,0 +1,24 @@
+`default_genesis_config.json` file has been generated by the following code:
+```
+	use crate::genesismap::GenesisStorageBuilder;
+	#[test]
+	fn write_default_config_to_tmp_file() {
+		let j = json::to_string(&GenesisStorageBuilder::default().genesis_config()).unwrap().into_bytes();
+		let mut file = fs::OpenOptions::new()
+			.create(true)
+			.write(true)
+			.open("/tmp/default_genesis_config.json").unwrap();
+		file.write_all(&j);
+	}
+```
+
+`:code` field has been manually truncated to reduce file size. Test is only
+comparing keys, not the values.
+
+`default_genesis_config_invalid.json` is just a broken copy of
+`default_genesis_config.json` with `authorities` field renamed to
+`renamed_authorities`.
+
+
+`default_genesis_config_invalid.json` is just an incomplete copy of
+`default_genesis_config.json` with `babe::authorities` field removed.