created the DataFields of given elements of the Models that are needed for lab01

adrianlancedamalerio_music/Homepage/models.py

+from django.db import models
+
+class Artist(models.Model):
+    artist_name = models.CharField(max_length = 100)
+    monthly_listeners = models.IntegerField(default = 0)
+
+class Album(models.Model):
+    album_name = models.CharField(max_length = 100)
+    artist = models.CharField(max_length = 100)
+    description = models.CharField(max_length = 500)
+    release_date = models.DateField()
+
+class Song(models.Model):
+    song_title = models.CharField(max_length = 100)
+    artist = models.CharField(max_length = 100)
+    album = models.CharField(max_length = 100)
+    song_length = models.IntegerField(default = 0)
+