Only convert table name to lower-case when installation forces it

Issue #12861

A `lower_case_table_names` setting of `2` does not mean that the table needs to be forced to lower-case
This preserves case unless the `lower_case_table_names` setting is `1`, implying that lower-case should be forced

Signed-off-by: Mike Lewis <mike@mplew.is>

libraries/Table.php

@@ -1350,7 +1350,7 @@ class Table
                 );
             }
         );
-        if ($lowerCaseTableNames) {
+        if ($lowerCaseTableNames === '1') {
             $new_name = strtolower($new_name);
         }