Custom levels add time, San, and HP events

Custom feature additions: [olist] [*] Custom levels will have time nodes, which can trigger time events. [*] In custom levels, health and spirit values have their own trigger events, which can be activated when health and spirit values change. [*] Fixed a bug where custom level saves were automatically deleted. [/olist] Bug fixes [olist] [*] Fixed a bug where the bloody sea ending of God Bless Hospital could not be triggered. [/olist] If some saves are unusable after the update, please overwrite directly. If you find new save game issues or other bugs, please join QQ group: 417399957. Thank you for your timely feedback!