Dearaj

Updates
- Added `.movies`, `.speaks` property for `period`, `Conference` and `Conferences`
- Added `.has` method for `Assembly` etc.

New features
- Added class `period` for better experience.
python
>>> for conf in period("2019-01-01", "2019-03-01"):
... print(conf)
...
period: 100%|██████████████████████████████████████████████████████████████████████| 10/10 [00:00<00:00, 2813.08conf/s]
<2019-01-09, 14:05, 수, 제365회 국회(임시회) 제04차 남북경제협력특별위원회(2 movies)>
<2019-01-01, 00:15, 화, 제365회 국회(임시회) 제02차 국회운영위원회(1 movies)>
<2019-01-16, 09:36, 수, 제365회 국회(임시회) 폐회중 제01차 과학기술정보방송통신위원회(1 movies)>
<2019-01-15, 10:16, 화, 제365회 국회(임시회) 제01차 국방위원회(1 movies)>
<2019-01-09, 10:24, 수, 제365회 국회(임시회) 제02차 행정안전위원회(1 movies)>
<2019-01-09, 11:05, 수, 제365회 국회(임시회) 제01차 보건복지위원회(1 movies)>
<2019-01-18, 10:03, 금, 제365회 국회(임시회) 폐회중 제02차 보건복지위원회(2 movies)>
<2019-01-22, 14:28, 화, 제366회 국회(임시회) 제01차 문화체육관광위원회(1 movies)>
<2019-01-21, 14:38, 월, 제366회 국회(임시회) 제01차 행정안전위원회(1 movies)>
<2019-01-24, 10:07, 목, 제366회 국회(임시회) 제08차 정치개혁특별위원회(1 movies)>

- New static method `from_local_file` for class `Conference` for code reuse

Updates
- It turns out that there were duplicated conference records on the Korean Assembly gov site -- no need to change `local.Conferences` anymore.

Updates
- 6th - 20th conferences data files added to path `dearaj/local`
- `ajcore` module set to private since it contains mostly crawling functions / classes
- `local` module (based on `ajcore`) added and set to default to replace `ajcore`, users should now use this module
- Now `ajcore.Conferences` differs from `local.Conferences`. Still, `local.Conference` has `.pdf` property which allows user to get pdf binary data from the congress website.

Todo
- Add more features to `local.Conference`
- Add 21st assembly conferences data to `dearaj/local`
- Add functions to check missing local data, because `ajcore.Conferences(19)` has some more (<=10) csv files than `local.Conferences(19)`
- Add more analysis tool functions

Updates
- Added error handling for conference PDF file downloading
- Added class `Movie` and `Speak` for detailed conference records

TODO
- High-level friendly API
- Something like class 'ConfChunk'