Entity:GetMaterials - Minor Change

Entity:GetMaterials - irrelevant bug to this function

Entity:GetMaterials - Mark issue #3216 resolved in the next update + add note about the result

Entity:GetMaterials - Mark issue #4853 as resolved in the next update

Entity:GetMaterials - Add issue #4853 notice

Entity:GetMaterials - Well yes, you are generating a big table every frame. Of course it'll tax your performance, this doesn't need to be put on every page

Entity:GetMaterials - I discovered that calling this in each Think caused a 'crash' in FPS

Entity:GetMaterials - No change reason was given