[REFACTOR] phpunit.xml and bootstrap added

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] die() removed from constructor

https://app.asana.com/0/12866594763058/13380782980474
[REFACTOR] ValidationException added

https://app.asana.com/0/12866594763058/13380782980474

It also adds the $data param, to preserve wrong data for reference
[REFACTOR] ValidationException added

https://app.asana.com/0/12866594763058/13380782980474

$data argument first on a list
[REFACTOR] ValidationException added

https://app.asana.com/0/12866594763058/13380782980474

$data argument removed
[REFACTOR] ValidationException added to Init

https://app.asana.com/0/12866594763058/13380782980474
[REFACTOR] ValidationException added to Init

https://app.asana.com/0/12866594763058/13380782980474
Merge branch 'refactor/separate-exceptions' into refactor/php-unit-tests
[REFACTOR] Files/folders rearrangement

https://app.asana.com/0/12866594763058/13380782980474
[REFACTOR] Tests for Init class added

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] Remote class tests

https://app.asana.com/0/12866594763058/13353435202410

We're deferring testing data connections, like api or db requests.
But still I decided to commit my commented code, to make it easier
in the future.
[REFACTOR] Conversion class test

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] Uuid class tests

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] Refactor isJson() to be static

https://app.asana.com/0/12866594763058/13455847179727
Merge branch 'refactor/utils-json' into refactor/php-unit-tests
[REFACTOR] Json class tests

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] Latest tests report

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] junit.xml removed

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] junit.xml added to gitignore

https://app.asana.com/0/12866594763058/13353435202410
[REFACTOR] unwanted spaces removed

https://app.asana.com/0/12866594763058/13353435202410