KH2: init cleanup and random visit locking fix and docs update. (#1652)

Random Visit Locking wasn't copying correctly
init cleanup and moved itempool population to create_items
Updated docs due to a lot of people having issues setting it up.

worlds/kh2/test/TestGoal.py

@@ -1,5 +1,6 @@
 from . import KH2TestBase
-from ..Names import ItemName,LocationName,RegionName
+from ..Names import ItemName
+
 
 class TestDefault(KH2TestBase):
     options = {}
@@ -18,10 +19,12 @@ class TestLuckyEmblem(KH2TestBase):
         self.collect_all_but([ItemName.LuckyEmblem])
         self.assertBeatable(True)
 
+
 class TestHitList(KH2TestBase):
     options = {
         "Goal": 2,
     }
+
     def testEverything(self):
         self.collect_all_but([ItemName.Bounty])
         self.assertBeatable(True)