Update MySqlConnector to 1.0 (#4)

Author: bgrainger

src/NHibernate.Driver.MySqlConnector/NHibernate.Driver.MySqlConnector.csproj

@@ -25,7 +25,7 @@
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0">
         <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="MySqlConnector" Version="1.0.0-beta.1" />
+    <PackageReference Include="MySqlConnector" Version="[1.0.0, 2.0.0)" />
     <PackageReference Include="NHibernate" Version="5.1.0" />
   </ItemGroup>