Initial stub migrate to androidx room

app/src/main/java/com/hippo/ehviewer/dao/DownloadLabel.java

@@ -1,35 +1,20 @@
 package com.hippo.ehviewer.dao;
 
-import org.greenrobot.greendao.annotation.*;
+import androidx.room.ColumnInfo;
+import androidx.room.Entity;
+import androidx.room.PrimaryKey;
 
-// THIS CODE IS GENERATED BY greenDAO, DO NOT EDIT. Enable "keep" sections if you want to edit.
-
-/**
- * Entity mapped to table "DOWNLOAD_LABELS".
- */
-@Entity(nameInDb = "DOWNLOAD_LABELS")
+@Entity(tableName = "DOWNLOAD_LABELS")
 public class DownloadLabel {
 
-    @Id
+    @PrimaryKey
+    @ColumnInfo(name = "_id")
     private Long id;
+    @ColumnInfo(name = "LABEL")
     private String label;
+    @ColumnInfo(name = "TIME")
     private long time;
 
-    @Generated
-    public DownloadLabel() {
-    }
-
-    public DownloadLabel(Long id) {
-        this.id = id;
-    }
-
-    @Generated
-    public DownloadLabel(Long id, String label, long time) {
-        this.id = id;
-        this.label = label;
-        this.time = time;
-    }
-
     public Long getId() {
         return id;
     }