Links to checker documentations

[csordasmarton]

For developers checker documentations are very useful information. With CodeChecker we can get it and we can also ask couple of more checker information with the following command: CodeChecker checkers -o json --details -w.

The output will look like this:

[
    {
        "status": "unknown",
        "name": "bugprone-exception-escape",
        "analyzer": "clang-tidy",
        "description": "",
        "labels": [
            "doc_url:https://clang.llvm.org/extra/clang-tidy/checks/bugprone-exception-escape.html",
            "guideline:sei-cert",
            "profile:extreme",
            "profile:security",
            "profile:sensitive",
            "sei-cert:dcl57-cpp",
            "sei-cert:err55-cpp",
            "sei-cert:msc53-cpp",
            "severity:MEDIUM"
        ]
    },
    ...
]

Proposed solution:

• Get checker labels with the above mentioned command and save it to a JSON file when vscode is started for optimization reason.
• Show checker labels when hovering over a report in the bug tree in a tooltip .
• Create a child node under each report (e.g.: Go to checker documentation) which would open the checker documentation in a browser.

[csordasmarton]

We have to handle the following cases:

• doc_url is a valid URL to an external web page (http/https).
• doc_url is a reference to an existing file path on the local system (https://github.com/Ericsson/codechecker/pull/3609).