added 'experimental' to gpu switching menu item
added 'experimental' to gpu switching menu item

princeofdarkness76/gfxCardStatus,princeofdarkness76/gfxCardStatus,raziel2001au/gfxCardStatus,2020Deception/gfxCardStatus,princeofdarkness76/gfxCardStatus,pajp/gfxCardStatus,raziel2001au/gfxCardStatus,pajp/gfxCardStatus,pajp/gfxCardStatus,2020Deception/gfxCardStatus,msravi/gfxCardStatus,msravi/gfxCardStatus,2020Deception/gfxCardStatus,msravi/gfxCardStatus,raziel2001au/gfxCardStatus