added 3 new icons (+1 alt) & compinfos

[ryeookie]

• eduVULCAN
• Lunatask
• VinBus

[flameshikari]

Hi! I've fixed icons a little in 43d73ac:

• vinbus*: the template is a little lighter now, otherwise it looked too dimly

• lunatask: the first column uses dark red/yellow/green/blue/purple (hereinafter rygbp), the last column uses basic rygbp colors, and the remaining columns use dark rygbp as transparencies with 0.75/0.5/0.25 values respectively. we try not to use transparency overall, but an exception can be made here and in this case it is advisable to keep as many colors from the palette as possible, so this is why I recolored it