Handle SSL errors in CaptivePortalLoginActivity

[Current Problem]
When SSL error occures, there is no UI of detailed error.
Then end user cannot see SSL error reason and detailed page.

[Solution]
We added new dialog to show error information,
with SSL reason, the detailed certificate.
End user can confirm it via error page if he/she wants to view.

Bug: 74608260
Author: Yevgen Pronenko <yevgen.pronenko@sonymobile.com>
Author: Shigeki Yokomichi <shigeki.x.yokomichi@sonymobile.com>

Change-Id: If700478930f248f2e53f9b1c9b2b7d4e0551b6d7