1. rename TrackpadSetting to TouchpadAndMouseSetting
to match more about usage.
2. Add separated pages for touchpad and mouse.
Gather options from current page and put it accordingly.
Please note that this change only add isolate files for pages
and didn't reference from anywhere, it will be done in next change.
This is part of feature for keyboard setting update.
document: go/new-a11y-touchpad-mouse-page
Bug: 377602364
Test: atest SettingsRoboTests
Flag: com.android.settings.keyboard.keyboard_and_touchpad_a11y_new_page_enabled
Change-Id: I9e18ce3fbc3617bfb6cef3c272f3cfcfd2ff8a37
