Restore MIT LICENSE

This got lost during the migration into Rails 7 app.

LICENSE

@@ -0,0 +1,49 @@
+COPYRIGHT
+
+Copyright © 2012-2024 Ticket Booth Authors
+
+Authors include, but not limited to:
+
+- Shane de Silva, @sds on Github
+- Konstantin Gredeskoul, @kigster on Github
+- Matt Levy, @beingmattlevy on Github
+- California Foundation for Advancement of Electronic Arts (CFAEA 503c), aka "FnF"
+- FnF Engineers
+
+LICENSE
+
+Permission is hereby granted, 
+free of charge, to any person 
+obtaining a copy of this software 
+and associated documentation 
+files (the “Software”), to deal 
+in the Software without restriction, 
+including without limitation the 
+rights to use, copy, modify, merge, 
+publish, distribute, sublicense, 
+and/or sell copies of the Software, 
+and to permit persons to whom the 
+Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and 
+this permission notice shall be 
+included in all copies or 
+substantial portions of the 
+Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, 
+WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT 
+NOT LIMITED TO THE WARRANTIES OF 
+MERCHANTABILITY, FITNESS FOR A 
+PARTICULAR PURPOSE AND 
+NONINFRINGEMENT. IN NO EVENT SHALL 
+THE AUTHORS OR COPYRIGHT HOLDERS 
+BE LIABLE FOR ANY CLAIM, DAMAGES 
+OR OTHER LIABILITY, WHETHER IN 
+AN ACTION OF CONTRACT, TORT OR 
+OTHERWISE, ARISING FROM, OUT 
+OF OR IN CONNECTION WITH THE 
+SOFTWARE OR THE USE OR OTHER 
+DEALINGS IN THE SOFTWARE.