[Pull Request] Prepare for release version 2.1.0.#3

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ChenPi12 merged 17 commits intomainfrom

Sep 2, 2023

Commits on Jul 26, 2023

Remove unused test suite.
ChenPi11
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Commits on Aug 9, 2023

Update `.gitignore`.
ChenPi11
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Commits on Aug 23, 2023

Add CTest on Windows support.
ChenPi11
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Commits on Aug 24, 2023

Commits on Aug 25, 2023

Remove `${srcdir}` `${bindir} in build-aux`.
ChenPi11
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Commits on Aug 28, 2023

Add codepage definitions.
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Commits on Aug 29, 2023

Commits on Aug 31, 2023

Update language map.
ChenPi11
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Commits on Sep 2, 2023