Require full name for kvittering

[ShaileshS1702]

Made a validator for name. Name now has to include a space.

I did also make it such that at least two of the names had to be more than 0 in length. This was added because writing your first name and just a space would validate you name while not being a real name. Initially , I did think about having two names with at least 2 letters (so not just initals) but could not find any sources on length of a name. ( In case we invalidate a name such as Å, even thought that is a persons full first or last name).

I do really appreciate input on this topic.

Resolves ABA-1075

[norbye]

Good job! I think this will do nicely, and if it should be too restrictive or too lax we can tweak it at a later point

[linear]

ABA-1075 Add validation to require full name