Update 1 NuGet dependencies

***NO_CI***

Author: nfbot

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

@@ -30,7 +30,7 @@
       <HintPath>..\packages\nanoFramework.CoreLibrary.2.0.0-preview.63\lib\netnano1.0\mscorlib.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Benchmark, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Benchmark.2.0.0-preview.11\lib\netnano1.0\nanoFramework.Benchmark.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Benchmark.2.0.0-preview.13\lib\netnano1.0\nanoFramework.Benchmark.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.Logging, Version=2.0.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Logging.2.0.0-preview.39\lib\netnano1.0\nanoFramework.Logging.dll</HintPath>

nanoFramework.System.Text.Benchmark/packages.config

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="nanoFramework.Benchmark" version="2.0.0-preview.11" targetFramework="netnano1.0" />
+  <package id="nanoFramework.Benchmark" version="2.0.0-preview.13" targetFramework="netnano1.0" />
   <package id="nanoFramework.CoreLibrary" version="2.0.0-preview.63" targetFramework="netnano1.0" />
   <package id="nanoFramework.Logging" version="2.0.0-preview.39" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="2.0.0-preview.29" targetFramework="netnano1.0" />

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

@@ -4,9 +4,9 @@
     ".NETnanoFramework,Version=v1.0": {
       "nanoFramework.Benchmark": {
         "type": "Direct",
-        "requested": "[2.0.0-preview.11, 2.0.0-preview.11]",
-        "resolved": "2.0.0-preview.11",
-        "contentHash": "aM01W+h0c1aCHTvVNhmiQ2xFAKV6ki0VCvTAOvEzdYeoUesxlQgun1FzjqEI/TSeQu1vL6tcJ/HGnQtNobcLeA=="
+        "requested": "[2.0.0-preview.13, 2.0.0-preview.13]",
+        "resolved": "2.0.0-preview.13",
+        "contentHash": "214iBqa2d9VXwnmAjN3JOfJcV+ZhEfLgx6K5zhjeDJ8J1E1fyGGzFrGM7qtTuAyFPVbqRMcgoQhDQ8YPzxjFBA=="
       },
       "nanoFramework.CoreLibrary": {
         "type": "Direct",