Refactoring - Move CefNavigationEntry conversion to TypeConversion

[merceyz]

• Moved conversion of CefNavigationEntry -> NavigationEntry to CefSharp.Core\Internals\TypeConversion.h

The conversion of CefNavigationEntry -> NavigationEntry was duplicated in

• CefSharp.Core\Internals\CefNavigationEntryVisitorAdapter.h
• CefSharp.Core\Internals\CefBrowserHostWrapper.cpp

[AppVeyorBot]

✅ Build CefSharp 72.0.0-CI2985 completed (commit 33515af27c by @merceyz)

[amaitland]

Thanks 👍 Will need to take this for a spin before merging as the code was restructured. A quick glance and it looks fine.

[AppVeyorBot]

✅ Build CefSharp 73.0.0-CI3023 completed (commit 0db0b240c2 by @merceyz)

[amaitland]

I rebased this locally which GitHub didn't seem to recognise, so effectively this was merged in 58e8a29

Added additional null check in 1a2d4a8 and improved xml doc slightly for SslStatus.CertStatus

[merceyz]

I rebased this locally which GitHub didn't seem to recognise

To edit this PR so that GitHub notices it, you'd have to get my fork and push to the branch this PR is pointed to

[amaitland]

I know, I was trying to be lazy 😄