categoryIdの意味
参照：
https://developers.google.com/youtube/v3/docs/videoCategories/list
https://gist.github.com/dgp/1b24bf2961521bd75d6c
1 - Film & Animation
2 - Autos & Vehicles
10 - Music
15 - Pets & Animals
17 - Sports
18 - Short Movies
19 - Travel & Events
20 - Gaming
21 - Videoblogging
22 - People & Blogs
23 - Comedy
24 - Entertainment
25 - News & Politics
26 - Howto & Style
27 - Education
28 - Science & Technology
29 - Nonprofits & Activism
30 - Movies
31 - Anime/Animation
32 - Action/Adventure
33 - Classics
34 - Comedy
35 - Documentary
36 - Drama
37 - Family
38 - Foreign
39 - Horror
40 - Sci-Fi/Fantasy
41 - Thriller
42 - Shorts
43 - Shows
44 - Trailers