Added uncompress method to haxe.zip.Tools (#9356)

std/haxe/zip/Tools.hx

@@ -34,4 +34,19 @@ class Tools {
 		f.data = data.sub(2, data.length - 6);
 		f.dataSize = f.data.length;
 	}
+
+	public static function uncompress(f:Entry) {
+		if( !f.compressed )
+			return;
+
+		var c = new Uncompress(-15);
+		var s = haxe.io.Bytes.alloc(f.fileSize);
+		var r = c.execute(f.data,0,s,0);
+		c.close();
+		if( !r.done || r.read != f.data.length || r.write != f.fileSize )
+			throw "Invalid compressed data for "+f.fileName;
+		f.compressed = false;
+		f.dataSize = f.fileSize;
+		f.data = s;
+	}
 }