Frontend: prototype

For test, You __MUST__ insert some rows in `works` table.

Start server
```console
$ cliche runserver -c dev.cfg.py
```
Start server with reloader and debug mode
```console
$ cliche runserver -c dev.cfg.py -rd
```
You can try to access http://localhost:5000/ and http://localhost:5000/work/ and http://localhost:5000/work/`title_name` (You __MUST__ insert some rows in `works` table)
```console
$ psql cliche_db
```
```sql
insert into works (name, created_at) values ('test', now());
insert into people (name, created_at) values ('오오카와 나나세',now()),('이가라시 사츠키',now()),('네코이 츠바키',now()),('모코나',now()),('아무개',now()),('홍민희',now());
insert into teams (name,created_at) values ('CLAMP',now()),('나카요 시',now());
insert into credits (work_id,person_id,role,created_at,team_id) values (1,1,'author',now(),1),(1,2,'artist',now(),1),(1,3,'artist',now(),1),(1,4,'artist',now(),1),(1,5,'editor',now(),2);
insert into credits (work_id,person_id,role,created_at) values (1,6,'author',now());
```