add player data operations: update, ban/unban, delete, inventory adjust, storage

Players.Update/Ban/Unban/Delete + List search; new InventoryService.Adjust
and StorageService.Get/Upsert/Delete; IdempotencyKey on wallet adjust;
models regenerated via apigen

models/banplayerrequest.go

@@ -0,0 +1,9 @@
+// Code generated by apigen. DO NOT EDIT.
+
+package models
+
+type BanPlayerRequest struct {
+	BannedUntil    string `json:"bannedUntil,omitempty"`
+	IdempotencyKey string `json:"idempotencyKey,omitempty"`
+	Reason         string `json:"reason,omitempty"`
+}