Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/FSO.Server.Database/DatabaseScripts/changes/0029_generic_participation.sql

@@ -0,0 +1,15 @@
+CREATE TABLE `fso_generic_avatar_participation` (
+  `participation_name` TEXT(64) NOT NULL,
+  `participation_avatar` INT UNSIGNED NOT NULL,
+  PRIMARY KEY (`participation_name`(64), `participation_avatar`),
+  INDEX `fso_generic_ava_idx` (`participation_avatar` ASC),
+  INDEX `fso_generic_name_idx` (`participation_name`(64) ASC),
+  CONSTRAINT `fso_generic_avatarp_id`
+    FOREIGN KEY (`participation_avatar`)
+    REFERENCES `fso_avatars` (`avatar_id`)
+    ON DELETE CASCADE
+    ON UPDATE CASCADE)
+COMMENT = 'If you need a generic way to track avatar participation in things, here it is. Useful for events and tasks that don\'t have their own per-avatar tracking and need it.';
+
+ALTER TABLE `fso_tasks` 
+CHANGE COLUMN `task_type` `task_type` ENUM('prune_database', 'bonus', 'shutdown', 'job_balance', 'multi_check', 'prune_abandoned_lots', 'neighborhood_tick', 'birthday_gift') NOT NULL ;