Consider improvements from Giovanni Ciatto's template

[NiccoMlt]

Giovanni Ciatto is mantaining a thesis template similar to this one on GitHub at gciatto-unibo/thesis-template.

Consider including some useful ideas from his project:

• move away template logic from main.tex to a .sty file (like thesis-style.sty);
• include chapters that are usually present directly in template:
  • Abstract
  • Introduction
  • State of the Art
  • Design
  • Implementation
  • Validation
  • Conclusions
• document each chapter a little;
• introduce better the integrations with PlantUML diagrams and listings/minted code listings.
• consider if his frontspiece front.tex is better than the standard one generate by frontespizio package.

[NiccoMlt]

"move away template logic from main.tex to a .sty file" can be decomposed in:

• define option for language (needed by many packages)
• define option for author, title, subject and everything is needed by both pdfx (in fancyvrb) and frontespizio
• copy every package definition switching to RequirePackage command

Also:

• add lualatex check
• add Overleaf-specific check