Revert AUTO_LAUNCH capability to options

[fleytman]

Description

In 8.5.1 java_client was "AndroidMobileCapabilityType.AUTO_LAUNCH", in java client 9.3.0 UiAutomator2Options there is no such option. Although this is the capability actual for UiAutomator2-driver.
xcuitest driver also has this capability

[eglitise]

You can use the amend method for any capability that doesn't have a dedicated method, e.g.:

UiAutomator2Options options = new UiAutomator2Options()
    .amend("autoLaunch", "true")