Feature: Axis ticks with titles?

Example:

Is there a recommended way to create "Ticks" along each axis? If not, this would be very helpful for scenarios where you do not want a full grid displayed. The implementation could "mirror" `FlGridData`:

```dart
tickData: const FlTickData(
horizontalInterval: 50,
verticalInterval: 50,
drawVerticalTick: true,
verticalTickLength: 4,
drawHorizontalTick: true,
horizontalTickLength: 4,
...other styling or widget builder override
show: true,
),
```

Start by reviewing the existing FlGridData behavior and the example image to understand the requested axis ticks without a full grid. Define the tick configuration and styling behavior described in the issue, then verify that ticks can be shown independently on each axis with the requested intervals and lengths.

Written by the indexing model from the issue text.