New predicates for checking that a value has no decimal or no seconds

[Seddryck]

It should be possible to test the following possibilities:

• integer: for a numeric, the value has no decimal
• modulo: for a numeric, the modulo of the second-operand is equal to the reference
• on-the-day: for a dateTime, the value is at midnight
• on-the-hour: for a dateTime, the value has no minutes or seconds
• on-the-minute: for a dateTime, the value has no seconds
• true and false: for a boolean, that the value is respectively true or false

[Seddryck]

Beta available in https://ci.appveyor.com/project/Seddryck/nbi/build/1.16.0-beta.81.build.78