PARTICLE OF TITANIUM DIOXIDE PIGMENT WITH DENSE DOPED LAYER OF SILICON DIOXIDE (SiO2) (VERSIONS), METHOD OF MAKING PARTICLES WITH DENSE DOPED LAYER OF SiO2 (VERSIONS) AND METHOD OF PRODUCING PAINTS, LACQUERS AND PAPER USING SAID PARTICLES AND STARTING MATERIAL WHEN MAKING PAPER OR COATING BASED ON SAID PARTICLES