Feature/multi remote support

[monavari-lebrecht]

add multiremote support, have a closer look at examples/ui5-js-app/webapp/test/e2e/multiremote.test.js and examples/ui5-js-app/wdio-multiremote.conf.js for information how to use it.

Basic usage is:
Change capabilities to

capabilities: {
        one: {
            capabilities: {
                browserName: "chrome",
                acceptInsecureCerts: true
            }
        },
        two: {
            capabilities: {
                browserName: "chrome",
                acceptInsecureCerts: true
            }
        }
    },

So you can access the browser instances either by calling them by their name to get the control instance like in single remote tests:

const button = await browser.two.asControl({
            selector: {
                id: "openDialogButton",
                viewName: "test.Sample.view.Main"
            }
        })

or access them in all instances at the same time:

const button = await browser.asControl({
            selector: {
                id: "openDialogButton",
                viewName: "test.Sample.view.Main"
            }
        })

to get an array of controls from each instance one:

        const buttonOne = button[0]
        const buttonTwo = button[1]

TODO: writing more tests for each command. At the moment only basic tests are integrated.

[dominikfeininger]

Hi, something misssing here, or just a mixup of changes?

[dominikfeininger]

Why no use of browserInstance in files client-side-js/ _navTo, getUI5Version, injectTools, injectUI5, testLibrary?

[dominikfeininger]

hi, when running on my machine I get a different output:

It passes but throws errors?

[vobu]

hey @monavari-lebrecht, can you please resolve the merge conflicts so we can get this cool feature in? thanks!

[vobu]

It passes but throws errors?

FTR and as investigated: the error message is intended as part of the test checking for a non-existent control

[vobu]

just a minor hunch that there's a duplicate def in there (see respective comment) - otherwise good to go!

[vobu]

could you please check wether this is an (accidental) duplicate to line 62ff?