Custom BTCPay donation integration

fixes #122

mariadb-structure.sql

@@ -84,3 +84,19 @@ ALTER TABLE `transactions`
 
 ALTER TABLE `statistics`
   MODIFY `id` int(11) NOT NULL AUTO_INCREMENT;
+
+
+CREATE TABLE `donations` (
+  `id` int(11) NOT NULL,
+  `added` datetime NOT NULL,
+  `amount` float NOT NULL,
+  `handle` varchar(250) NOT NULL,
+  `order_id` varchar(25) NOT NULL,
+  `imageUrl` varchar(250) NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+ALTER TABLE `donations`
+  ADD PRIMARY KEY (`id`);
+
+ALTER TABLE `donations`
+  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT;