Add PHP SVG badge and update badge path in BadgeComposer

A PHP SVG badge was introduced to the repository and the file path to badges in the BadgeComposer class was updated. The SVG badge reflects usage percentage in PHP. Also, the folder hierarchy was improved by shifting 'badge-templates' directory to a more appropriate parent directory named 'template'.

Author: mohanrajpac

Diff for: badges/php.svg

@@ -118,7 +118,7 @@ private function processFile(string $inputFile): void
     private function finalizeCoverage(): void
     {
         $totalCoverage = $this->totalCoverage / count($this->inputFiles); // Average coverage across all files
-        $template = file_get_contents(__DIR__ . '/../badge-templates/badge.svg');
+        $template = file_get_contents(__DIR__ . '/../template/badge.svg');
 
         $template = str_replace('{{ total }}', $totalCoverage, $template);