.NET Assembly

Making plugin as a .NET assembly is the convenient way to build a plugin.

[+] Since all calls are made within the same process, the data processing is very efficient.
[-] It is not supported with the QueryCat CLI. You should include QueryCat as a package in your .NET project.
[-] Only .NET specific language can be used.

To prepare a plugin follow the steps:

Create a new empty library project.
```
dotnet new classlib --name SimplePlugin
```
NOTE: The plugin must contain "Plugin" (case insensitive) word in its name.
Reference QueryCat.Plugins.Client project. Right now it is not available in NuGet, you can clone the repository somewhere and reference it. For example:
```
<ItemGroup>
    <ProjectReference Include="..\querycat\src\QueryCat.Plugins.Client\QueryCat.Plugins.Client.csproj" />
</ItemGroup>
```
Implement functions and rows inputs. They will be discovered in the assembly using reflection.
Publish the assembly. It can be published as .dll or .nupkg file.