NH-3905 - Update NUnit to 3.7.0

ShowBuildMenu.bat

@@ -5,7 +5,7 @@ set NANT="%~dp0Tools\nant\bin\NAnt.exe" -t:net-4.0
 set BUILDTOOL="%~dp0Tools\BuildTool\bin\Release\BuildTool.exe"
 set AVAILABLE_CONFIGURATIONS=%~dp0available-test-configurations
 set CURRENT_CONFIGURATION=%~dp0current-test-configuration
-set NUNIT="%~dp0Tools\NUnit.ConsoleRunner.3.6.0\tools\nunit3-console.exe"
+set NUNIT="%~dp0Tools\NUnit.ConsoleRunner.3.7.0\tools\nunit3-console.exe"
 
 :main-menu
 echo ========================= NHIBERNATE BUILD MENU ==========================

Tools/packages.config

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="NUnit.Console" version="3.6.0" targetFramework="net461" />
-  <package id="NUnit.ConsoleRunner" version="3.6.0" targetFramework="net461" />
-  <package id="NUnit.Extension.NUnitProjectLoader" version="3.5.0" targetFramework="net461" />
-  <package id="NUnit.Extension.NUnitV2Driver" version="3.6.0" targetFramework="net461" />
-  <package id="NUnit.Extension.NUnitV2ResultWriter" version="3.5.0" targetFramework="net461" />
+  <package id="NUnit.Console" version="3.7.0" targetFramework="net461" />
+  <package id="NUnit.ConsoleRunner" version="3.7.0" targetFramework="net461" />
+  <package id="NUnit.Extension.NUnitProjectLoader" version="3.6.0" targetFramework="net461" />
+  <package id="NUnit.Extension.NUnitV2Driver" version="3.7.0" targetFramework="net461" />
+  <package id="NUnit.Extension.NUnitV2ResultWriter" version="3.6.0" targetFramework="net461" />
   <package id="NUnit.Extension.TeamCityEventListener" version="1.0.2" targetFramework="net461" />
-  <package id="NUnit.Extension.VSProjectLoader" version="3.5.0" targetFramework="net461" />
+  <package id="NUnit.Extension.VSProjectLoader" version="3.6.0" targetFramework="net461" />
 </packages>