Git-web-url

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**Bugfixes**

- Fix a bug that the relative path should not be "." when the git repo dir when you are already at the git repo dir.

**Miscellaneous**

- Improve code coverage test to 99%.

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**Bugfixes**

- Fix a bug that cannot detect the git repo dir when you are already at the git repo dir.

**Miscellaneous**

- Add CLI help info.

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**Features and Improvements**

- First release.
- Add support for AWS CodeCommit, BitBucket, BitBucket Enterprise, GitHub, GitHub Enterprise, GitLab, GitLab Enterprise.
- Add the following public API:
- ``git_web_url.api.PlatformEnum``
- ``git_web_url.api.ProtocolEnum``
- ``git_web_url.api.get_web_url``
- Add the CLI command ``gitweburl`` or ``gwu``.