feat(database): 添加ClickHouse数据库驱动支持

- 新增ClickHouse数据库驱动实现
- 更新数据库驱动注册包，添加对MySQL、PostgreSQL、SQL Server、Oracle、SQLite和ClickHouse的支持
- 修改Database函数返回类型从gdb.DB到DB
- 添加go.mod和go.sum依赖管理文件

database/drivers/pgsql/pgsql.go

@@ -0,0 +1,71 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+// Package pgsql implements database.Driver for PostgreSQL database.
+package pgsql
+
+import (
+	"database/sql"
+	"fmt"
+
+	_ "github.com/lib/pq"
+
+	"git.magicany.cc/black1552/gin-base/database"
+)
+
+// Driver is the driver for PostgreSQL database.
+type Driver struct {
+	*database.Core
+}
+
+const (
+	quoteChar = `"`
+)
+
+func init() {
+	if err := database.Register("pgsql", New()); err != nil {
+		panic(err)
+	}
+}
+
+// New creates and returns a driver that implements database.Driver for PostgreSQL.
+func New() database.Driver {
+	return &Driver{}
+}
+
+// New creates and returns a database object for PostgreSQL.
+// It implements the interface of database.Driver for extra database driver installation.
+func (d *Driver) New(core *database.Core, node *database.ConfigNode) (database.DB, error) {
+	return &Driver{
+		Core: core,
+	}, nil
+}
+
+// GetChars returns the security char for PostgreSQL database.
+func (d *Driver) GetChars() (charLeft string, charRight string) {
+	return quoteChar, quoteChar
+}
+
+// Open creates and returns an underlying sql.DB object for PostgreSQL.
+func (d *Driver) Open(config *database.ConfigNode) (*sql.DB, error) {
+	var (
+		source   string
+		username = config.User
+		password = config.Pass
+		host     = config.Host
+		port     = config.Port
+		dbName   = config.Name
+	)
+
+	source = fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable",
+		host, port, username, password, dbName)
+
+	if config.Extra != "" {
+		source += " " + config.Extra
+	}
+
+	return sql.Open("postgres", source)
+}