I18n integration in View
- Integrated i18n translator in View class which allows you to get text using text() in templates like you did with get() before.
- We have a set_i18n_lang() and set_i18n_fallback_lang() method in the View.
- Fixed core class paths in boot() function (dunno why this wasn't already done).
- TODO list: initializer list instead of doing the assignment in the class ctor body when it's a trivial expression.
- Added a Testing/ directory with test code - just for development and shouldn't be used as an example.

Coding in peace! :cherry_blossom: