Rename Irukagotchi to Dolphin. Add basic game state structures. (#268)

* Rename Irukagotchi to Dolphin. Add basic game state structures.
* Dolphin: state, counters, api. BT: shared access to flash. Flash: write api.
* add fake -1 deeds, example of changing icounter

Co-authored-by: coreglitch <mail@s3f.ru>

applications/dolphin/dolphin.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "dolphin_deed.h"
+
+typedef struct Dolphin Dolphin;
+
+/*
+ * Deed complete notification. Call it on deed completion.
+ * See dolphin_deed.h for available deeds. In futures it will become part of assets.
+ */
+void dolphin_deed(Dolphin* dolphin, DolphinDeed deed);