add hidden account, cart insert/delete

add hidden account support
add delete/payout buttons to carts
add backend product sales with pdf export
add frontend product sales with pdf export
add frontend ticket sales with pdf export

composer.lock

@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "fa82e6ba1233a366a5f044d19a7bd69d",
-    "content-hash": "ea0b9fcfc8a270415b8f9292af1c17d3",
+    "hash": "e0ae7f422a0ca8c9297c28eefe9acd9b",
+    "content-hash": "6277b5f664f4bc22c02c689e701964a5",
     "packages": [
         {
             "name": "almasaeed2010/adminlte",
@@ -1802,6 +1802,86 @@
             ],
             "time": "2014-11-09 19:54:17"
         },
+        {
+            "name": "mpdf/mpdf",
+            "version": "v6.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/mpdf/mpdf.git",
+                "reference": "a15743d030ce3b5b7be36c6e83f76589b27c3f2c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mpdf/mpdf/zipball/a15743d030ce3b5b7be36c6e83f76589b27c3f2c",
+                "reference": "a15743d030ce3b5b7be36c6e83f76589b27c3f2c",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": ">=4.3.10"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "mpdf.php",
+                    "classes"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-1.0+"
+            ],
+            "authors": [
+                {
+                    "name": "Ian Back"
+                }
+            ],
+            "description": "A PHP class to generate PDF files from HTML with Unicode/UTF-8 and CJK support",
+            "homepage": "http://www.mpdf1.com/mpdf/index.php",
+            "keywords": [
+                "pdf",
+                "php",
+                "utf-8"
+            ],
+            "time": "2015-03-01 10:27:49"
+        },
+        {
+            "name": "os/php-excel",
+            "version": "2.1",
+            "target-dir": "PHPExcel",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/ouardisoft/PHPExcel.git",
+                "reference": "1dcb280a82b94943a00d478eac099542aa0be2bd"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/ouardisoft/PHPExcel/zipball/1dcb280a82b94943a00d478eac099542aa0be2bd",
+                "reference": "1dcb280a82b94943a00d478eac099542aa0be2bd",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.2.6"
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "LOUARDI Abdeltif",
+                    "email": "louardi.abdeltif@yahoo.fr",
+                    "homepage": "http://phphub.net"
+                }
+            ],
+            "description": "PHP Excel Library",
+            "homepage": "http://github.com/ouardisoft/PHPExcel",
+            "keywords": [
+                "excel"
+            ],
+            "time": "2012-05-02 20:42:37"
+        },
         {
             "name": "rmrevin/yii2-fontawesome",
             "version": "2.12.2",