[FEATURE] Password fields in the Install tool

Now it is possible to define password fields in the Install tool
configuration.

Now the field transport_smtp_password uses a password field.

Resolves: #81794
Releases: master
Change-Id: Ia7c297e0f6676885ebe2089aabfd5ae8e3b1a3df
Reviewed-on: https://review.typo3.org/56781


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>