implemented "requires review" flag for process metrics

can be set for each individual process metric

when the metric is applicable by its conditions the product gets flagged with "requires review" (and consequently the item and order)

users are warned of this fact, this way clients will know in advance that the price may change, and suppliers are prompted to do so

improved initial camera position calculation algorithm in the 3D renderer

renamed non admin roles and granted them more relevant permissions

fixed product category and product visibility issue in client's view