[SysApps][Tizen] Rewrite DeviceCapabilities by using api offered by chromium.


Old implementation uses either linux api or Tizen api, while chromium has offer some
handy APIs we can reuse. They are cross-platform and well tested, no reason not use that.
Changes includes:
1. "base/sys_info.h" for CPU and Memory
2. "ui/gfx/screen.h" and "ui/gfx/display.h" for Display

Storage are not implemented in this way yet.