feat(nonlinear-static-newton-raphson): step 1 - nonlinear-static-domain-contract

tests/unit/io/abaqus/domain_mapping_components_test.cpp

@@ -150,6 +150,9 @@ TEST(DomainMappingComponents,
   EXPECT_EQ(domain.Materials().Size(), 1U);
   EXPECT_EQ(domain.Properties().Size(), 1U);
   ASSERT_EQ(domain.Steps().Size(), 1U);
+  EXPECT_EQ(domain.Steps()[0].ProcedureKind(),
+            StaticProcedureKind::kLinearSmallDisplacement);
+  EXPECT_FALSE(domain.Steps()[0].IsNonlinearStatic());
   EXPECT_EQ(domain.Steps()[0].BoundaryConditions().size(), 7U);
   EXPECT_EQ(domain.Steps()[0].Loads().size(), 1U);
   ASSERT_EQ(domain.Warnings().size(), 3U);