Move configuration into its own category & add list of configurations

[eternoendless]

Questions	Answers
Branch?	8.x
Description?	Moved the configuration into its own category and added the list of all configurations as found in configuration.xml (list to be completed with more data though)
Fixed ticket?	Partial fix for #378

[thomasnares]

@eternoendless @kpodemski do you want me to dive deeper and describe all the settings in the table ?

[eternoendless]

@eternoendless @kpodemski do you want me to dive deeper and describe all the settings in the table ?

Eventually, yes!

But I was thinking that we can merge this as it is and improve it later. Finding what each setting does might take a long while.

[thomasnares]

Yes, sure we can merge as it, and improve later