Allow connector opt-out for individual tests

[molant]

Right now we can ignore a rule from being run and/or tested via the ignoredCollectors properties.
Sometimes the differences are more granular and there are just some scenarios when we are testing that do not work on a specific collector and maybe it is just a question of waiting to the next release. Instead of just commenting the test (and thus not test anywhere) we should add the option to opt-out for an specific collector.
An example will be the content-type tests. Currently Chrome doesn't download JavaScript modules (it's behind a flag in v60). Also it doesn't download anything if it doesn't like the type attribute

We should also add a //TODO comment so we remove it later (hopefully once #210 is implemented so things are more automated).

I'm thinking about something similar to:

 {
        name: `Script is served with 'Content-Type' header with the wrong media type (has 'type=text/plain' and 'js' file extension)`,
        reports: [{ message: generateIncorrectMediaTypeMessage('application/javascript', 'text/plain') }],
        serverConfig: {
            '/': generateHTMLPageData(generateHTMLPage(undefined, '<script type="text/plain" src="test.js"></script>')),
            '/test.js': { headers: { 'Content-Type': 'text/plain; charset=utf-8' } }
        },
        ignoredCollectors: ['cdp']
    },

@sarvaje I don't know how you are implementing the Edge Collector (#170) but if we want this to work it will need a different id and not just a config change.

@MicrosoftEdge/sonar-devs thoughts?

[sarvaje]

@sarvaje I don't know how you are implementing the Edge Collector (#170) but if we want this to work it will need a different id and not just a config change.

I'm thinking to have cdp and another one... maybe eda or edge and they will share as much code as possible

[molant]

After thinking a bit more, I don't think we need this. It doesn't happen that often and when we have problems we should group the failing tests and just use the regular ignoredConnectors property of testRule:

const tests = [...];
const testsNotRunningOnConnector = [...];

ruleRunner.testRule(ruleName, tests);
ruleRunner.testRule(ruleName, testsNotRunningOnConnector, { ignoredConnectors: ['connector']});