- Add the GridTileComponent which hold the image and its background
- Add base theming syntax for the ImageGrid and GridTIle
- Numerous refactoring/cleaning in ImageGridComponent
- Add the metadata from the detailed view to the grid view (minus the image, as it doesn't make sens in the grid view)
- Add a callback to the ImageGridComponent to update the metadata info panel when cursor changed
- Grid tile number of columns and rows is now controlled by the grid size, mMargin and mTileMaxSize
- Add a variable mSelectedTileMaxSize to control the size of the selected tile
- Update the render function to display the selected tile on top of the other