Materials were refactored

StructureHelperCommon/Models/Materials/Libraries/IFiberMaterialEntity.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Models.Materials.Libraries
+{
+    public interface IFiberMaterialEntity : ILibMaterialEntity
+    {
+        /// <summary>
+        /// Modulus of elasticity, Pa
+        /// </summary>
+        double YoungsModulus { get; set; }
+    }
+}