feat: 新增多个服务类及工具类，重构部分代码结构

重构服务类结构，将分散的服务统一整合到service包下
新增ProjectConstant常量类及多个实体服务类
添加SecurityUtils安全工具类和BeanCacher工具类
优化部分UI控件和转换器的实现

client/src/main/java/com/ecep/contract/service/ProjectService.java

@@ -1,8 +1,11 @@
 package com.ecep.contract.service;
 
+import com.ecep.contract.model.Contract;
 import com.ecep.contract.model.Project;
+import com.ecep.contract.model.ProjectSaleType;
 import com.ecep.contract.vm.ProjectViewModel;
 
+import java.io.File;
 import java.util.List;
 
 public class ProjectService implements ViewModelService<Project, ProjectViewModel> {
@@ -23,4 +26,25 @@ public class ProjectService implements ViewModelService<Project, ProjectViewMode
     public void applyCode(Project project, String code) {
         throw new UnsupportedOperationException();
     }
+
+    public Project newInstanceByContract(Contract contract) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'newInstanceByContract'");
+    }
+
+    public File searchPath(Project project) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'searchPath'");
+    }
+
+    public int getNextCodeSequenceNumber(ProjectSaleType newValue, int i) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getNextCodeSequenceNumber'");
+    }
+
+    public Project findBySaleTypeAndCodeYearAndCodeSequenceNumber(ProjectSaleType saleType, int codeYear,
+            int codeSequenceNumber) {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'findBySaleTypeAndCodeYearAndCodeSequenceNumber'");
+    }
 }