HighTouchSensitivity [2/2]: Add Settings preference

 * Allows the HighTouchSensitivity (Glove mode)
   value to be saved in the CMSettings provider

 * Can be used in a device specific service to handle
   the Glove mode in a way closer to the device's vendor

 * Changes include :
     android_packages_apps_Settings
     cm_platform_sdk

Change-Id: If57bbfddbed1324fcb8488ef5a03ff242a128ba3
Signed-off-by: AdrianDC <radian.dc@gmail.com>