allowHistoryStackFlags

Adds all history stack flags into the allowed flags set. They are:

• FLAG_ACTIVITY_BROUGHT_TO_FRONT
• FLAG_ACTIVITY_CLEAR_TASK
• FLAG_ACTIVITY_CLEAR_TOP
• FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET
• FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
• FLAG_ACTIVITY_LAUNCH_ADJACENT
• FLAG_ACTIVITY_MULTIPLE_TASK
• FLAG_ACTIVITY_NEW_DOCUMENT
• FLAG_ACTIVITY_NEW_TASK
• FLAG_ACTIVITY_NO_ANIMATION
• FLAG_ACTIVITY_NO_HISTORY
• FLAG_ACTIVITY_PREVIOUS_IS_TOP
• FLAG_ACTIVITY_REORDER_TO_FRONT
• FLAG_ACTIVITY_RESET_TASK_IF_NEEDED
• FLAG_ACTIVITY_RETAIN_IN_RECENTS
• FLAG_ACTIVITY_SINGLE_TOP
• FLAG_ACTIVITY_TASK_ON_HOME