metallic paint rename stuff and whatever else I tweaked

hello tell me if something broke because I've messed around with stuff a lot since the last update

forgot to package the f40's paint ao texture properly....

f40 mats/misc tweaks iirc

leather normal map/E30 macau paint darker for more authenticity

RX7 materials

I forgot to revert some temporary changes

moved textures that should be shared to this addon

None Provided

moved 'semi-shared' materials from individual car files to this addon, miscellaneous tweaks