新增功能-api生成数据库并初始化回写配置

修改gva initdb 判断是否已经创建的一些小问题
新增api生成数据库并初始化回写配置
修改文件：
server/cmd/gva/initdb.go
server/cmd/information/data_authorities.go
server/cmd/information/workflow.go
server/initialize/gorm
server/main.go

新增文件：
server/api/v1/sys.initdb.go
server/middleware/init.go
server/model/sys_init.go
server/service/sys_initdb.go
servcer/utils/init_db.go

迁移文件
server/cmd/gva/mysql.go->server/utils/mysql.go

server/service/sys_initdb.go

@@ -0,0 +1,40 @@
+package service
+
+import (
+	"fmt"
+	"gin-vue-admin/global"
+	"gin-vue-admin/model"
+	"gin-vue-admin/utils"
+)
+
+//@author: [songzhibin97](https://github.com/songzhibin97)
+//@function: InitDB
+//@description: 创建数据库并初始化
+//@param: authorityId string
+//@return: err error, treeMap map[string][]model.SysMenu
+
+func InitDB(conf model.InitDB) error {
+	if conf.Host == "" {
+		conf.Host = "127.0.0.1"
+	}
+	if conf.Port == "" {
+		conf.Port = "3306"
+	}
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/", conf.UserName, conf.Password, conf.Host, conf.Port)
+	fmt.Println(dsn)
+	createSql := fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_general_ci;", conf.DBName)
+	if err := utils.CreateTable(dsn, "mysql", createSql); err != nil {
+		return err
+	}
+	setting := map[string]interface{}{
+		"mysql.path":     fmt.Sprintf("%s:%s", conf.Host, conf.Port),
+		"mysql.db-name":  conf.DBName,
+		"mysql.username": conf.UserName,
+		"mysql.password": conf.Password,
+	}
+	if err := utils.WriteConfig(global.GVA_VP, setting); err != nil {
+		return err
+	}
+	utils.InitDB()
+	return nil
+}