Lua models : bad things

[NevilClavain]

encountered some ugly things in lua models files :
1 - [model].createmodelview -> one 1 pass args (p_pass_id) is not enough : need an array with all rendergraph passes
2 - [model].createmodelview -> node attachment in entitygraph is hardcoded !! ( p_entitygraph:add_child('root',p_entity_id,entity)) : need an argument for the entitygraph node we want to attach

[NevilClavain]

done