feat: add request id to logs

To enhance debugging experience each logged line should contain id for current request. With such format it will be easier to identify all messages coming from single request. Having id enables grep-friendly output.

Signed-off-by: Bart Jaskulski bartek.jaskulski@wpdesk.net

src/deprecated/wpdesk-logger-factory.php

@@ -42,7 +42,7 @@ if ( ! class_exists( 'WPDesk_Logger_Factory' ) ) {
 		 *
 		 * @see http://php.net/manual/en/function.debug-backtrace.php
 		 */
-		public static function log_wp_error( WP_Error $e, array $backtrace ) {
+		public static function log_wp_error( WP_Error $e, array $backtrace = array() ) {
 			$message = 'Error: ' . get_class( $e ) . ' Code: ' . $e->get_error_code() . ' Message: ' . $e->get_error_message();
 
 			self::log_message_backtrace( $message, WPDesk_Logger::ERROR, $backtrace );
@@ -79,7 +79,7 @@ if ( ! class_exists( 'WPDesk_Logger_Factory' ) ) {
 		 * @param string $level Level of error.
 		 * @param array  $backtrace Backtrace information with snapshot of error env.
 		 */
-		public static function log_message_backtrace( $message, $level = WPDesk_Logger::DEBUG, array $backtrace ) {
+		public static function log_message_backtrace( $message, $level = WPDesk_Logger::DEBUG, array $backtrace = array() ) {
 			$message .= ' Backtrace: ' . json_encode( $backtrace );
 			if (isset($backtrace[ self::BACKTRACE_FILENAME_KEY ])) {
 				$filename = $backtrace[ self::BACKTRACE_FILENAME_KEY ];