Add debugv method and increase client debug verbosity

src/ManticoreSearch/Client.php

@@ -139,7 +139,7 @@ public function sendRequest(
 
 		$result = $this->responseBuilder->fromBody($this->response);
 		$time = (int)((microtime(true) - $t) * 1000000);
-		Buddy::debug("[{$time}µs] manticore request: $request");
+		Buddy::debugv("[{$time}µs] manticore request: $request");
 		return $result;
 	}
 

src/Process/Process.php

@@ -75,7 +75,7 @@ public function start(): self {
 	 * @return static
 	 */
 	public function execute(string $method, array $args = []): static {
-		Buddy::debug("[process] execute: $method " . json_encode($args));
+		Buddy::debugv("[process] execute: $method " . json_encode($args));
 		$this->process->write(serialize([$method, $args]));
 		return $this;
 	}

src/Tool/Buddy.php

@@ -41,16 +41,29 @@ public static function info(string $message, string $eol = PHP_EOL): void {
 	 *
 	 * @param string $message
 	 * @param string $eol
+	 * @param int $verbosity 1
 	 * @return void
 	 */
-	public static function debug(string $message, string $eol = PHP_EOL): void {
-		if (!getenv('DEBUG')) {
+	public static function debug(string $message, string $eol = PHP_EOL, int $verbosity = 1): void {
+		$debug = (int)getenv('DEBUG');
+		if ($debug < $verbosity) {
 			return;
 		}
 
 		echo "{$message} {$eol}";
 	}
 
+	/**
+	 * Wrapper to display message with higher level of the verbosity
+	 *
+	 * @param string $message
+	 * @param string $eol
+	 * @return void
+	 */
+	public static function debugv(string $message, string $eol = PHP_EOL): void {
+		static::debug($message, $eol, 2);
+	}
+
 	/**
 	 * Get version that is read from the file we provided before
 	 * Normally it's done on initialization stage of the Buddy base