Transport controller and file model (#42)

* Transport controller and file model

* Use randomBytes intead of pseudoRandomBytes

* Cover all lines with tests

* Update code style

* Update code style

* View for image block

* Fix serving static files

* Mkdir -p for uploads dirs

* Add default secret param

* Add image Tool

* Update src/utils/objects.js

Co-Authored-By: talyguryn <vitalik7tv@yandex.ru>

* Use vars for image tool colors

* Revert var

* Remove --color-gray-border var

* Update src/controllers/transport.js

Co-Authored-By: talyguryn <vitalik7tv@yandex.ru>

* Add mp4 support for Image Tool

public/dist/code-styling.css

@@ -1 +1 @@
-.hljs{display:block;overflow-x:auto;padding:.5em;color:#abb2bf;background:#282c34}.hljs-comment,.hljs-quote{color:#5c6370;font-style:italic}.hljs-doctag,.hljs-formula,.hljs-keyword{color:#c678dd}.hljs-deletion,.hljs-name,.hljs-section,.hljs-selector-tag,.hljs-subst{color:#e06c75}.hljs-literal{color:#56b6c2}.hljs-addition,.hljs-attribute,.hljs-meta-string,.hljs-regexp,.hljs-string{color:#98c379}.hljs-built_in,.hljs-class .hljs-title{color:#e6c07b}.hljs-attr,.hljs-number,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-pseudo,.hljs-template-variable,.hljs-type,.hljs-variable{color:#d19a66}.hljs-bullet,.hljs-link,.hljs-meta,.hljs-selector-id,.hljs-symbol,.hljs-title{color:#61aeee}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}.hljs-link{text-decoration:underline}
+.hljs{display:block;background:#fff;padding:.5em;color:#333;overflow-x:auto}.hljs-comment,.hljs-meta{color:#969896}.hljs-emphasis,.hljs-quote,.hljs-string,.hljs-strong,.hljs-template-variable,.hljs-variable{color:#df5000}.hljs-keyword,.hljs-selector-tag,.hljs-type{color:#a71d5d}.hljs-attribute,.hljs-bullet,.hljs-literal,.hljs-symbol{color:#0086b3}.hljs-name,.hljs-section{color:#63a35c}.hljs-tag{color:#333}.hljs-attr,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id,.hljs-selector-pseudo,.hljs-title{color:#795da3}.hljs-addition{color:#55a532;background-color:#eaffea}.hljs-deletion{color:#bd2c00;background-color:#ffecec}.hljs-link{text-decoration:underline}