fix: Complete snowbridge pezpallet rebrand and critical bug fixes

- snowbridge-pezpallet-* → pezsnowbridge-pezpallet-* (201 refs)
- pallet/ directories → pezpallet/ (4 locations)
- Fixed pezpallet.rs self-include recursion bug
- Fixed sc-chain-spec hardcoded crate name in derive macro
- Reverted .pezpallet_by_name() to .pallet_by_name() (subxt API)
- Added BizinikiwiConfig type alias for zombienet tests
- Deleted obsolete session state files

Verified: pezsnowbridge-pezpallet-*, pezpallet-staking,
pezpallet-staking-async, pezframe-benchmarking-cli all pass cargo check

pezbridges/relays/utils/src/initialize.rs

@@ -0,0 +1,72 @@
+// Copyright 2019-2021 Parity Technologies (UK) Ltd.
+// This file is part of Parity Bridges Common.
+
+// Parity Bridges Common is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity Bridges Common is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity Bridges Common.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Relayer initialization functions.
+
+use parking_lot::Mutex;
+use pezsp_tracing::{
+	tracing::Level,
+	tracing_subscriber::{
+		fmt::{time::OffsetTime, SubscriberBuilder},
+		EnvFilter,
+	},
+};
+use std::cell::RefCell;
+
+/// Relayer version that is provided as metric. Must be set by a binary
+/// (get it with `option_env!("CARGO_PKG_VERSION")` from a binary package code).
+pub static RELAYER_VERSION: Mutex<Option<String>> = Mutex::new(None);
+
+async_std::task_local! {
+	pub(crate) static LOOP_NAME: RefCell<String> = RefCell::new(String::default());
+}
+
+/// Initialize relay environment.
+pub fn initialize_relay() {
+	initialize_logger(true);
+}
+
+/// Initialize Relay logger instance.
+pub fn initialize_logger(with_timestamp: bool) {
+	let format = time::format_description::parse(
+		"[year]-[month]-[day] \
+		[hour repr:24]:[minute]:[second] [offset_hour sign:mandatory]",
+	)
+	.expect("static format string is valid");
+
+	let local_time = OffsetTime::new(
+		time::UtcOffset::current_local_offset().unwrap_or(time::UtcOffset::UTC),
+		format,
+	);
+
+	let env_filter = EnvFilter::builder()
+		.with_default_directive(Level::WARN.into())
+		.with_default_directive("bridge=info".parse().expect("static filter string is valid"))
+		.from_env_lossy();
+
+	let builder = SubscriberBuilder::default().with_env_filter(env_filter);
+
+	if with_timestamp {
+		builder.with_timer(local_time).init();
+	} else {
+		builder.without_time().init();
+	}
+}
+
+/// Initialize relay loop. Must only be called once per every loop task.
+pub(crate) fn initialize_loop(loop_name: String) {
+	LOOP_NAME.with(|g_loop_name| *g_loop_name.borrow_mut() = loop_name);
+}