add custom columns filter

src/JasonTable.php

@@ -90,4 +90,14 @@ class JasonTable
 
         return $styleStr;
     }
+
+    protected function getFilterFromCustomColumn(string $column)
+    {
+        if (is_array($this->beforePrintCell[$column])) {
+            if (isset($this->beforePrintCell[$column]['filter'])) {
+                return $this->beforePrintCell[$column]['filter'];
+            }
+        }
+        return "text";
+        }
 }