AllureSelenide configuration for screenshots and page source

[simple-elf]

//: # (
. Thank you so much for sending us a pull request!
.
. Make sure you have a clear name for your pull request.
. The name should start with a capital letter and no dot is required in the end of the sentence.
. To link the request with isses use the following notation: (fixes #123, fixes #321)
.
. An example of good pull request names:
. - Add Russian translation (fixes #123)
. - Add an ability to disable default plugins
. - Support emoji in test descriptions
)

Context

Added configuration for save screenshots and page sources to Allure report or not.

SelenideLogger.addListener("AllureSelenide", new AllureSelenide().screenshots(true).savePageSource(false));

Checklist

• Sign Allure CLA

[simple-elf]

Also changes in allure-docs allure-framework/allure-docs#93

[baev]

@simple-elf please fix the build

[baev]

@simple-elf thanks!

[rosolko]

@simple-elf @baev This PR override configuration from Selenide config.
So if I’m set config in any other place this listener override it.
I think that better solution will be direct:

1. Create 2 constructors - empty and with two current params
2. Do nothing in empty constructor
3. Update Selenide configuration inside all arg constructor and remove class fields.
4. In code(on event) look for configuration value, so both behaviors will work. Default from selenide and user defined. And custom listener config.

[rosolko]

@simple-elf @baev
I mean something like that:

public class AllureSelenide implements LogEventListener {
    private final AllureLifecycle lifecycle;

    public AllureSelenide() {
        this(Allure.getLifecycle());
    }

    public AllureSelenide(final AllureLifecycle lifecycle) {
        this.lifecycle = lifecycle;
    }

    public AllureSelenide screenshots(final boolean saveScreenshots) {
        Configuration.screenshots = saveScreenshots;
        return this;
    }

    public AllureSelenide savePageSource(final boolean savePageHtml) {
        Configuration.savePageSource = savePageHtml;
        return this;
    }

    @Override
    public void onEvent(final LogEvent event) {
                ...
                if (Configuration.screenshots) {
                    lifecycle.addAttachment("Screenshot", "image/png", "png", getScreenshotBytes());
                }
                if (Configuration.savePageSource) {
                    lifecycle.addAttachment("Page source", "text/html", "html", getPageSourceBytes());
                }
                ...
    }

[simple-elf]

Like I said in #198 with selenide screenshots configuration files will be dublicates in allure-results folder and in selenide folder fo screenshots (and page htmls). For using this integration you need to set Configuration.screenshots = false - and you will get screenshots in allure-results.