change counter_map to std::map<uint16, uint16>

[salix5]

https://www.db.yugioh-card.com/yugiohdb/faq_search.action?ope=5&fid=23486&keyword=&tag=-1&request_locale=ja

counter map

counters with COUNTER_WITHOUT_PERMIT:

• It can be put on any monster.
• It remains on the card when the card is negated.

ordinary counters:

• It can only be put on the monster with a EFFECT_COUNTER_PERMIT effect.
• It is removed when the card is negated.

Now temporary/permanent counter is determined by counter type. Keeping an array for every counter type is unnecessary.

change returns.svalue to uint16

The number of counter is uint16 (0~65535), and returns.svalue should be the same.

@mercury233 @purerosefallen