#2183 sp_BlitzIndex ginormous index support (#2196)

When logging to table, use MAX data sizes for drop_tsql, create_tsql, index_definition. Closes #2183.

Author: BrentOzar

sp_BlitzIndex.sql

@@ -4561,12 +4561,12 @@ BEGIN;
 											[schema_name] NVARCHAR(128), 
 											[table_name] NVARCHAR(128), 
 											[index_name] NVARCHAR(128),
-                                            [Drop_Tsql] NVARCHAR(4000),
-                                            [Create_Tsql] NVARCHAR(4000), 
+                                            [Drop_Tsql] NVARCHAR(MAX),
+                                            [Create_Tsql] NVARCHAR(MAX), 
 											[index_id] INT, 
 											[db_schema_object_indexid] NVARCHAR(500), 
 											[object_type] NVARCHAR(15), 
-											[index_definition] NVARCHAR(4000), 
+											[index_definition] NVARCHAR(MAX), 
 											[key_column_names_with_sort_order] NVARCHAR(MAX), 
 											[count_key_columns] INT, 
 											[include_column_names] NVARCHAR(MAX),