Add `speed` option for actions

Proposal

This affects to delay between action parts (for example between mousedown and mouseup in click, or between each symbol typing in typeText), to the cursor speed. This option you can use if you need to emulate human-behavior (it can be useful for cases when your scripts work properly only if you do actions no too fast).

Now we have the following options: Mouse Action Options, Click Action Options, Typing Action Options. I suppose it should be a new type of options:

Action Options: { speed: <number> }

Mouse, Click and Typing options extend it. So, we add options argument to Select Text, Type Text and Press Key actions.

Multiply

If the test run speed options is set to some value1 and action option is set to the value2 - it will be multiplied and the action will be executing with speed value1 * value2

[helen-dikareva]

I don’t really like idea to multiply factors. May be just use speed factor specified for action, if we don’t have it - use factor specified for test controller.

[georgiy-abbasov]

Multiply

Imho, there should be action speed option priority upon testController speed option and they should be independent. Is possible a scenario where all actions are slow and one should be executed quickly ? :

test `my test` (async t => {
    t.speed = 0.5;
    // ... bunch of slow actions
    await t.click({ speed: 1 });
    // ... bunch of slow actions
});