Add Query Filters to Get All Spots

[xShirokuma]

Return spots filtered by query parameters.

• Query parameters are accepted for page, size, minLat, maxLat,
  minLng, maxLng, minPrice, and maxPrice
• Default values are provided for the page and size parameters
• Successful response includes only spots in the database that meet the
  specified query parameters criteria.
• Spot data returned includes the id, ownerId, address, city,
  state, country, lat, lng, name, description, price, createdAt,
  updatedAt, and previewImage for each spot
• Successful response includes the page and size of the returned payload
• Error response with status 400 is given when query parameter validations
  for the page, size, minLat, maxLat, minLng, maxLng, minPrice, or
  maxPrice are violated