The Messenger: Add Mega Time Shards and Quest 1 boss locations (#1661)

* implement mega shards

* create the option and locations, add to slot data and tests

* add boss refights as locations

* remove barma'thazel. it's apparently impossible to get to him

* remove barma'thazel again

* up max shard count to 85

* increment version

* dynamically alter the power seal pool

* revert host.yaml change

* two mega shards were missing from the maps

* add new checks to the info page

* add some more rules to skylands

* forgot to update my tests

* explicit imports, remove unnecessary typing, lower required client ver

* use generators for shard and seal creation

worlds/messenger/Constants.py

@@ -1,5 +1,6 @@
 # items
 # listing individual groups first for easy lookup
+
 NOTES = [
     "Key of Hope",
     "Key of Chaos",
@@ -151,3 +152,10 @@ SEALS = [
     "Elemental Skylands Seal - Water",
     "Elemental Skylands Seal - Fire",
 ]
+
+BOSS_LOCATIONS = [
+    "Leaf Golem",
+    "Ruxxtin",
+    "Emerald Golem",
+    "Queen of Quills",
+]