Rename "money" type to "atk4_money" type

[mvorisek]

• DBAL types are global and by including this library within composer generic money type should not be added to other projects.
  To keep this type we rename it to atk4_money. This type represents basic float type with rounding to 4 decimal places.

• We also drop password type as it does not provide any security. Password securtiy should be implemented using string type on higher app level.

• newly, when no Field::type is set, the value is normalized using string type

• Atk4\Schema\PhpunitTestCase class renamed to Atk4\Data\Schema\TestCase

• Atk4\Schema\Migration class renamed to Atk4\Data\Schema\Migration

• also adjust for renamed Hintable package name