그누보드(영카트) 5.5.0.2-beta (이니시스 통합인증)

# 변경된 사항

```
KG이니시스의 통합인증 기능을 사용할 수 있습니다.
이 기능은 안정화 되기 전까지 베타 버전으로 제공됩니다.
이 기능이 필요하지 않은 경우에는 5.4.x 버전을 사용해 주시기 바랍니다.
```

### 너무 많은 코드가 변경되어 변경된 파일만 안내해 드립니다.

adm/member_form.php
bbs/board.php
bbs/member_cert_refresh.php
bbs/member_cert_refresh_update.php
bbs/register_form_update.php
bbs/write.php
common.php
config.php
install/gnuboard5.sql
install/install_db.php
lib/common.lib.php
lib/shop.lib.php
mobile/skin/member/basic/member_cert_refresh.skin.php
mobile/skin/member/basic/password_lost.skin.php
mobile/skin/member/basic/register_form.skin.php
mobile/skin/social/social_register_member.skin.php
plugin/kgcert/kg_find_result.php
plugin/kgcert/kg_request.php
plugin/kgcert/kg_result.php
plugin/social/register_member_update.php
skin/member/basic/member_cert_refresh.skin.php
skin/member/basic/password_lost.skin.php
skin/member/basic/register_form.skin.php
skin/social/social_register_member.skin.php
theme/basic/mobile/skin/member/basic/member_cert_refresh.skin.php
theme/basic/mobile/skin/member/basic/password_lost.skin.php
theme/basic/mobile/skin/member/basic/register_form.skin.php
theme/basic/skin/member/basic/member_cert_refresh.skin.php
theme/basic/skin/member/basic/password_lost.skin.php
theme/basic/skin/member/basic/register_form.skin.php
version.php