opening_hours: use compiled library instead of JS wrapper

[remi-dupre]

It is still very experimental but a good proof that there is not so much work left to do :)

[remi-dupre]

@amatissart after your merged #192 I was curious to see how using a compiled library for parsing opening hours could help.

This is not a huge surprise but calls often take a to a millisecond, this implementation is still quite naive and ome cheap optimizations could be performed.

is_open(2021-02-05 07:56:26.925039+00:00) in 0.000047s
get_open_intervals(2021-01-31 00:00:00+01:00, 2021-02-03 00:00:00+01:00) in 0.001242s
get_open_intervals_at_date(2021-02-01, overlap_next_day=True) in 0.001590s
get_open_intervals(2021-02-01 00:00:00+01:00, 2021-02-04 00:00:00+01:00) in 0.001207s
get_open_intervals_at_date(2021-02-02, overlap_next_day=True) in 0.001552s
get_open_intervals(2021-02-02 00:00:00+01:00, 2021-02-05 00:00:00+01:00) in 0.001524s
get_open_intervals_at_date(2021-02-03, overlap_next_day=True) in 0.001874s
get_open_intervals(2021-02-03 00:00:00+01:00, 2021-02-06 00:00:00+01:00) in 0.001144s
get_open_intervals_at_date(2021-02-04, overlap_next_day=True) in 0.001463s
get_open_intervals(2021-02-04 00:00:00+01:00, 2021-02-07 00:00:00+01:00) in 0.001163s
get_open_intervals_at_date(2021-02-05, overlap_next_day=True) in 0.001470s
get_open_intervals(2021-02-05 00:00:00+01:00, 2021-02-08 00:00:00+01:00) in 0.001132s
get_open_intervals_at_date(2021-02-06, overlap_next_day=True) in 0.001432s
get_open_intervals(2021-02-06 00:00:00+01:00, 2021-02-09 00:00:00+01:00) in 0.001166s
get_open_intervals_at_date(2021-02-07, overlap_next_day=True) in 0.001470s

Opening hours "specification" is really a huge mess ^^'