Update 1 NuGet dependencies

***NO_CI***

Author: nfbot

System.IO.FileSystem.UnitTests/System.IO.FileSystem.UnitTests.nfproj

@@ -55,10 +55,10 @@
       <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.15\lib\netnano1.0\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.TestFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.TestFramework.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.52\lib\nanoFramework.TestFramework.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.UnitTestLauncher, Version=0.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.47\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
+      <HintPath>..\packages\nanoFramework.TestFramework.4.0.0-preview.52\lib\nanoFramework.UnitTestLauncher.exe</HintPath>
     </Reference>
     <Reference Include="System.IO.Streams, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.IO.Streams.2.0.0-preview.15\lib\netnano1.0\System.IO.Streams.dll</HintPath>

System.IO.FileSystem.UnitTests/packages.config

@@ -3,5 +3,5 @@
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.43" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="2.0.0-preview.15" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="2.0.0-preview.15" targetFramework="netnano1.0" />
-  <package id="nanoFramework.TestFramework" version="4.0.0-preview.47" targetFramework="netnano1.0" developmentDependency="true" />
+  <package id="nanoFramework.TestFramework" version="4.0.0-preview.52" targetFramework="netnano1.0" developmentDependency="true" />
 </packages>

System.IO.FileSystem.UnitTests/packages.lock.json

@@ -22,9 +22,9 @@
       },
       "nanoFramework.TestFramework": {
         "type": "Direct",
-        "requested": "[4.0.0-preview.47, 4.0.0-preview.47]",
-        "resolved": "4.0.0-preview.47",
-        "contentHash": "h5Jd/lmjZwsLUbnxXjF90YD50jZ5JtVOuS1yK8dCZWQYByQry8CuI+69r7Zfl9J1ZzfEbC8/ANpcA+ANWFg1DQ=="
+        "requested": "[4.0.0-preview.52, 4.0.0-preview.52]",
+        "resolved": "4.0.0-preview.52",
+        "contentHash": "NnPJcRP41jr5pC8O5Zc29ozBAIm0PEXcj/vc/IjzWzsdNq1cpx8aRAoF3TW9cFEHdLu223tahoZyjFmALRSEoA=="
       }
     }
   }