PraseTja: Add branches

- Needs the following changes to the database: change `easy`, `normal`, `hard`, and `oni` to `TEXT` type
- When adding songs to the database and if, for example, a song's 7-star difficulty has a branch, instead of `7` input `7 B`, this is to display song's branch support on the song selection
- Branch can be forced in debug

public/src/js/strings.js

@@ -34,6 +34,7 @@
 	this.normal = "ふつう"
 	this.hard = "むずかしい"
 	this.oni = "おに"
+	this.songBranch = "譜面分岐あり"
 	this.sessionStart = "オンラインセッションを開始する！"
 	this.sessionEnd = "オンラインセッションを終了する"
 	this.loading = "ロード中..."
@@ -135,6 +136,7 @@ function StringsEn(){
 	this.normal = "Normal"
 	this.hard = "Hard"
 	this.oni = "Extreme"
+	this.songBranch = "Forked Paths"
 	this.sessionStart = "Begin an Online Session!"
 	this.sessionEnd = "End Online Session"
 	this.loading = "Loading..."
@@ -236,6 +238,7 @@ function StringsCn(){
 	this.normal = "普通"
 	this.hard = "困难"
 	this.oni = "魔王"
+	this.songBranch = "有分数分支"
 	this.sessionStart = "开始在线会话!"
 	this.sessionEnd = "结束在线会话"
 	this.loading = "加载中..."
@@ -337,6 +340,7 @@ function StringsTw(){
 	this.normal = "普通"
 	this.hard = "困難"
 	this.oni = "魔王"
+	this.songBranch = "有分數分支"
 	this.sessionStart = "開始多人模式!"
 	this.sessionEnd = "結束多人模式"
 	this.loading = "讀取中..."
@@ -438,6 +442,7 @@ function StringsKo(){
 	this.normal = "보통"
 	this.hard = "어려움"
 	this.oni = "귀신"
+	this.songBranch = "악보 분기 있습니다"
 	this.sessionStart = "온라인 세션 시작!"
 	this.sessionEnd = "온라인 세션 끝내기"
 	this.loading = "로딩 중..."