成本计算获取等级品自定义权重

【应用场景】

 二开插件重写成本计算过程中等级品权重获取，支持版本 PT-151005 [8.2.0.20231109]

【实现步骤】

1.继承AbstractCostCalPlugIn类，重写ReCalVarietalProductWeight方法

using Kingdee.K3.FIN.CB.App.Core.CostCal.Object;
using Kingdee.K3.FIN.CB.App.Core.CostCal.Parameters;
using Kingdee.K3.FIN.Core;
using Kingdee.K3.FIN.Core.Object.CostCal;
using System.Collections.Generic;

namespace Kingdee.K3.FIN.CB.App.Core.PlugIn
{
    /// <summary>
    /// 成本计算的插件
    /// </summary>
    public class CostCalPlugIn:AbstractCostCalPlugIn
    {
        /// <summary>
        /// 重算等级品权重
        /// </summary>
        /// <param name="seqs">产品序列对象</param>
        /// <param name="varetials">等级品</param>
        /// <param name="productingParameter">在产品计算参数类</param>
        /// <param name="weights">等级品权重</param>
        public override void ReCalVarietalProductWeight(List<ProductSeq> seqs, List<VarietalProduct> varetials, ProductingParameter productingParameter,Dictionary<ProductSeq, decimal> weights)
        {
            //按实际业务场景重新对等级品权重赋值
            decimal allcoefc = 100;
            foreach (var seq in seqs)
            {
                //废品
                if (seq.StockState == AcctgStockState.Waster)
                {
                    /