make boatatttack work with il2cpp

Assets/link.xml

+<linker>
+       <assembly fullname="Unity.2D.IK.Runtime" preserve="all"/>
+       <assembly fullname="Unity.Entities" preserve="all"/>
+       <assembly fullname="Unity.Entities.Hybrid" preserve="all"/>
+       <assembly fullname="Unity.InputSystem" preserve="all"/>
+       <assembly fullname="Unity.RenderPipelines.Universal.Runtime" preserve="all"/>
+       <assembly fullname="Unity.Timeline" preserve="all"/>
+       <assembly fullname="Unity.Addressables" preserve="all"/>
+       <assembly fullname="Unity.ResourceManager" preserve="all"/>
+
+</linker>

Assets/link.xml.meta

+fileFormatVersion: 2
+guid: 813b3929c051a9f4fb90120f9daa6984
+TextScriptImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: