More fixes.

- Fixed: containsKey & containsValue in HashMaps were deprecated for
Object Variants.
- Fixed: HashMap wasn't deleting Keys & Values references when removing
a Object
- Fixed: AVLTreeMap didn't balance properly.
- Changed: EnumMap no longer tries to access SharedSecrets since its
gone in java11
- Added: HashMaps now implement ITrimmable
- Added: AVLTreeSet didn't balance properly
- Fixed: HashMaps & LinkedMaps weren't clearing references properly.

src/builder/resources/speiger/assets/collections/templates/sets/AVLTreeSet.template

@@ -549,6 +549,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			else entry.parent.right = right;
 			right.left = entry;
 			entry.parent = right;
+			entry.updateHeight();
+			right.updateHeight();
 		}
 	}
 	
@@ -564,6 +566,8 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 			else entry.parent.left = left;
 			left.right = entry;
 			entry.parent = left;
+			entry.updateHeight();
+			left.updateHeight();
 		}
 	}
 	
@@ -1120,9 +1124,9 @@ public class AVL_TREE_SET KEY_GENERIC_TYPE extends ABSTRACT_SET KEY_GENERIC_TYPE
 		
 		int getHeight() { return state; }
 		
-		void updateHeight() { state = (1 + Math.max(left == null ? 0 : left.getHeight(), right == null ? 0 : right.getHeight())); }
+		void updateHeight() { state = (1 + Math.max(left == null ? -1 : left.getHeight(), right == null ? -1 : right.getHeight())); }
 		
-		int getBalance() { return (left == null ? 0 : left.getHeight()) - (right == null ? 0 : right.getBalance()); }
+		int getBalance() { return (left == null ? -1 : left.getHeight()) - (right == null ? -1 : right.getHeight()); }
 		
 		boolean needsSuccessor() { return left != null && right != null; }