Update 1 NuGet dependencies

***NO_CI***

Author: nfbot

nanoFramework.System.Text.Benchmark/nanoFramework.System.Text.Benchmark.nfproj

@@ -42,7 +42,7 @@
       <HintPath>..\packages\nanoFramework.System.Collections.2.0.0-preview.6\lib\nanoFramework.System.Collections.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.5\lib\nanoFramework.System.Text.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.System.Text.2.0.0-preview.6\lib\nanoFramework.System.Text.dll</HintPath>
     </Reference>
     <Reference Include="System.Diagnostics.Stopwatch, Version=1.2.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.Diagnostics.Stopwatch.1.2.862\lib\System.Diagnostics.Stopwatch.dll</HintPath>

nanoFramework.System.Text.Benchmark/packages.config

@@ -6,5 +6,5 @@
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.18" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Collections" version="2.0.0-preview.6" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Diagnostics.Stopwatch" version="1.2.862" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Text" version="2.0.0-preview.5" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Text" version="2.0.0-preview.6" targetFramework="netnano1.0" />
 </packages>

nanoFramework.System.Text.Benchmark/packages.lock.json

@@ -40,9 +40,9 @@
       },
       "nanoFramework.System.Text": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.5, 2.0.0-preview.5]",
-        "resolved": "2.0.0-preview.5",
-        "contentHash": "bSok7uDsUnic+RmoYo660XNlQhD631CrpIDUweiJtjuOtsNmwV4bwV28Xs0gpYF4xidYKUEk3nxt5lXU6ekATw=="
+        "requested": "[2.0.0-preview.6, 2.0.0-preview.6]",
+        "resolved": "2.0.0-preview.6",
+        "contentHash": "/A9M9sGW8rsAg6YF81quWV9MvQseKWZodf+pK6lp3Bw12NkXwgwiAo1+9geJQFwDsqi2L9BcLb3IIs/BerGTbQ=="
       }
     }
   }