[UIFlow] Add back manual screen refreshing for E-ink devices

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I am coding a application for the M5Core Ink.
One thing i want in it to work like linux Terminals And the problem that when i want to make it scroll up it has to refresh every line for second and not how i wanted it , to refresh all the lines at once. I would really appreciate any help in here.
This is pretty much the only feature i miss from UIFlow1.0