[ticket/12448] Allow null as default value for columns

PHPBB3-12448
[ticket/12448] Fix null columns for postgres

PHPBB3-12448
[ticket/12448] Fix null columns for MS SQL

PHPBB3-12448
[ticket/12685] Add console collection and fixing CLI

Added a commands service collection and removed CLI container

PHPBB3-12685
[ticket/12685] Add space after foreach

PHPBB3-12685
[ticket/12685] We need extensions enabled

PHPBB3-12685
[ticket/12846] SQLite3 bug in profilefield_base_migration.php

Using profilefield_base_migration.php to create a custom profile
field with SQlite3 DBMS returns warning:

[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/db/driver/sqlite3.php
on line 218: SQLite3Result::fetchArray(): Unable to execute statement:
constraint failed

This is due passing filed_id and lang_id to the DB driver in
unspecified format. As they are always int we should cast them
in int to prevent the error message appearance.

PHPBB3-12846
[ticket/12828] Add ucp_prefs.php common core event

Add common core event at the bottom of the includes/ucp/ucp_prefs.php
to allow additional actions (like template variable assignments etc.)
before the page load.

PHPBB3-12828
[ticket/12849] Fixed possible ReferenceError in core.js.

PHPBB3-12849
Merge pull request #2731 from callumacrae/ticket/12849-2

[ticket/12849] Fixed possible ReferenceError in core.js.

* callumacrae/ticket/12849-2:
  [ticket/12849] Fixed possible ReferenceError in core.js.
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12849] Fixed possible ReferenceError in core.js.
Merge pull request #2728 from lucifer4o/ticket/12846

[ticket/12846] SQLite3 bug in profilefield_base_migration.php

* lucifer4o/ticket/12846:
  [ticket/12846] SQLite3 bug in profilefield_base_migration.php
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/12846] SQLite3 bug in profilefield_base_migration.php
[ticket/12685] Add --safe-mode

PHPBB3-12685
[ticket/12685] Removed spaces

PHPBB3-12685
[ticket/12685] Container is dumped by default

PHPBB3-12685
[ticket/12685] Add a new line

PHPBB3-12685
[ticket/12685] Inject console.command_collection instead of the container

PHPBB3-12685
[ticket/12685] Removed unused USE statement

PHPBB3-12685
[ticket/12685] Override getDefaultInputDefinition()

PHPBB3-12685