Start maintenance anouncement

[sandrock]

Start maintenance:

• [x] support netstandard2.0 and net40.
• [x] nuget https://www.nuget.org/packages/ini-parser-new -> 2.6.2
• [x] issue templates
• [ ] start documentation

For those who were using ini-parser 2.5.2, this release adds support for net40 and netstandard2.0 with (almost) no API change.

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Feel free to post (again) your PR and issues. Extra contributors for this project would be welcome.

I know there are other nugets but these have no maintainer name or public github.

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I have some questions for the future of this project. Input is welcome.

• assembly name and code namespace
  • should I rename in order to allow the old and new project to live together?
  • or not rename for a smooth transition from the unmaintained project?
• namespaces
  • I feel there are too many namespaces in sources, don't you?
• what to do with upstream pending changes? #2

[aliceactually]

The namespace should remain for compatibility reasons, and as this project is meant to replace other older builds of the same code by other maintainers, leaving it as-is makes it easy to drop in as a replacement.