Add changelog for v0.5.0 release
Add changelog for v0.5.0 release

virgo-agent-toolkit/luvi,luvit/luvi,brimworks/luvi,joerg-krause/luvi,luvit/luvi,zhaozg/luvi,kidaa/luvi,brimworks/luvi,virgo-agent-toolkit/luvi,zhaozg/luvi,joerg-krause/luvi