Enhancement: Add pdf-generation for administrator AND/OR each user

[R3dst4r]

Current condition:
pdfonedoc only allows either <pdfonedoc>yes</pdfonedoc> OR <pdfonedoc>yes</pdfonedoc>

Target state:
Add parallel usage (logical gate "OR")

• <pdfonedoc>yes</pdfonedoc>
• <pdfonedoc>no</pdfonedoc>

of pdfonedoc (config.xml) for administrator + each user.

When acheiving target state, the nc-administrator will

1. be supplied with a list of all users
2. be supplied with a fileset of individual users' pdfs

Thanks in advance for consideration.

PS: Please tag @BenBo17 in your response if necessary. I am not very familiar with Github.

[R3dst4r]

We also considered resetting password expiry date in the database (e.g. via shell) and send a single email using <pdfonedoc>yes</pdfonedoc> with each user as recipent.
Nevertheless, we did not favor this suggestion because we think that the first solution suits better for data privacy reasons.

@BenBo17