Setup filtering for Masonry Gallery

[zlorenz]

@goldhand
The masonry gallery has been all setup. I just want to give users the ability to filter photos in the gallery by Tile, Wood, or Laminate designs.

Also, I've stored all images for the gallery and the rest of the website in html/sections/images. Not sure if this is kosher... if not, just let me know how I should handle static files for Bootstrap Builder in the future.