[GSoC .NET Bindings for UNO, Week 9] firstunocontact example

[Ritobroto Mukherjee <ritobroto04@xxxxxxxxx>]

Hello everyone,

Due to a lot of college work in the last two weeks, progress has been
minimal unfortunately. Here's a summary:

- Continued work on the native .NET UNO bridge. The FirstUnoContact
example works now (for a loose definition of works, there's only just
enough code in place to make that one example work).
https://gerrit.libreoffice.org/c/core/+/170916

- Received multiple helpful reviews on patches for .NET SDK on LODE and
the --with-dotnet option. Haven't had much time to work through all the
suggestions yet, but a reworking of all pending patches is underway.

Best regards,
Ritobroto