feat(xp): xp and level gain

xp/member.go

@@ -0,0 +1,22 @@
+package xp
+
+import (
+	"github.com/anhgelus/gokord"
+	"gorm.io/gorm"
+)
+
+type Copaing struct {
+	gorm.Model
+	DiscordID string
+	XP        uint
+	GuildID   string
+}
+
+func (c *Copaing) Load() *Copaing {
+	gokord.DB.Where("discord_id = ? and guild_id = ?", c.DiscordID, c.GuildID).FirstOrCreate(c)
+	return c
+}
+
+func (c *Copaing) Save() {
+	gokord.DB.Save(c)
+}