Implement handling of paste event for partitionned inputs

[V-ed]

This PR does two things :

• Puts the scripts required to create the partitionned inputs in their own script, which makes the utility script less dense
• Adds the handling of paste, which overwrites the current selected input and fills the remaining inputs with correct data

If there is a pattern added to the partitionned inputs, this pattern will be applied to the validation of the pasted content, which means that for example, a pattern that only accepts letters ([A-Za-z]) would transform this : (Hi, You ( :O ) are fun) into HiYouarefun (if there is enough space for all of these chars, of course).

Closes #77