added some ProBuilder stuff and FBX export

Assets/Objects/boats/Guns/Gun particle material.mat

   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
-  m_Name: Splash
+  m_Name: Gun particle material
   m_Shader: {fileID: 4800000, guid: 8d2bb70cbf9db8d4da26e15b26e74248, type: 3}
   m_ShaderKeywords: _ALPHAPREMULTIPLY_ON _ALPHATEST_ON
   m_LightmapFlags: 4

Packages/manifest.json

     "com.unity.build-report-inspector": "0.1.2-preview",
     "com.unity.burst": "1.2.3",
     "com.unity.cinemachine": "2.5.0",
+    "com.unity.formats.fbx": "3.0.1-preview.2",
+    "com.unity.probuilder": "4.2.3",
     "com.unity.recorder": "2.1.0-preview.1",
     "com.unity.render-pipelines.universal": "7.1.8",
     "com.unity.terrain-tools": "2.0.2-preview",

Assets/Scripts/Boat.DotSettings.user.meta

-fileFormatVersion: 2
-guid: 5726344abe1e14b25aaeabe5bfedc403
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: