[GSoC .NET Bindings for UNO, Week 11] pure bridge and fixes

[Ritobroto Mukherjee]

Hello everyone,

Here's a summary of this week's work:

- Continued work on the managed (pure C#) bridge this week. This
included working on component loading from managed .dll files, as well
as the URP protocol itself. No patch ready yet.

- Added interface property getter support to native bridge, lumped into
the patch here https://gerrit.libreoffice.org/c/core/+/170916.

- Fixed some issues with netmaker and net_basetypes discovered while
working on the bridge here
https://gerrit.libreoffice.org/c/core/+/171706.

- Contacted (email) Mr. Stephan Bergmann, as suggested by my mentors,
for some guidance on some of the issues faced for the native and
managed bridges.

Best regards,
Ritobroto