Manage `QKeyEvent.isAutoRepeat()` key presses

[hekra01]

When processing:

• /session/:sessionId/keys
• /session/:sessionId/element/:id/value

For each sequence of similar keys in the value, WD will generate the next events

• first KeyPress event isAutoRepeat = false
• last KeyRelease event isAutoRepeat = false
• all intermediary events isAutoRepeat = true

[hekra01]

done: 22824dc
To be released in 1.3.1