feat(heroku): add heroku config

Author: MicaelMnl

Procfile

@@ -0,0 +1 @@
+web: $(composer config bin-dir)/heroku-php-nginx -C nginx_app.conf web/

nginx_app.conf

@@ -0,0 +1,15 @@
+location / {
+    # try to serve file directly, fallback to rewrite
+    try_files $uri @rewriteapp;
+}
+
+location @rewriteapp {
+    # rewrite all to index.php
+    rewrite ^(.*)$ /app.php/$1 last;
+}
+
+location ~ ^/app\.php(/|$) {
+    try_files @heroku-fcgi @heroku-fcgi;
+    # ensure that /index.php isn't accessible directly, but only through a rewrite
+    internal;
+}