Added hidden and favorite and test for 10.15

tests/Test-10.15.1.photoslibrary/database/Photos.sqlite.lock

@@ -7,7 +7,7 @@
 	<key>hostuuid</key>
 	<string>9575E48B-8D5F-5654-ABAC-4431B1167324</string>
 	<key>pid</key>
-	<integer>3490</integer>
+	<integer>1368</integer>
 	<key>processname</key>
 	<string>photolibraryd</string>
 	<key>uid</key>

tests/test_catalina_10_15_1.py

@@ -142,6 +142,26 @@ def test_missing():
     assert p.ismissing() == True
 
 
+def test_favorite():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    photos = photosdb.photos(uuid=["E9BC5C36-7CD1-40A1-A72B-8B8FAC227D51"])
+    assert len(photos) == 1
+    p = photos[0]
+    assert p.favorite() == True
+
+
+def test_hidden():
+    import osxphotos
+
+    photosdb = osxphotos.PhotosDB(dbfile=PHOTOS_DB)
+    photos = photosdb.photos(uuid=["A1DD1F98-2ECD-431F-9AC9-5AFEFE2D3A5C"])
+    assert len(photos) == 1
+    p = photos[0]
+    assert p.hidden() == True
+
+
 def test_count():
     import osxphotos