erp5_core: Only search for ERP5 Login

   The implementation only works with ERP5 Login, since it is the only portal type that
   holds password in ERP5. Other implementations are password-less: Certificate Login,
   Google Login and Facebook Login, so they cannot have their password reset anyway.

   It is overkill split the login on multiple categorization, to use some portal group (ie:
   getPortalLoginPortalTypeThatCanResetPassord...) until we have a a clear usecase.
6 jobs for for_testrunner_2 in 0 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-TestRunner2

00:39:17

running ERP5.CodingStyleTest-TestRunner2

10830:22:16

failed ERP5.UnitTest-TestRunner2

02:42:00

running ERP5.UnitTest-TestRunner2

10830:22:07

failed ERP5.UnitTest-Zope2-ForTestRunner2

01:47:48

running ERP5.UnitTest-Zope2-ForTestRunner2

10830:22:09