Update to new major versions

PHP 7.3+
PHPUnit 9.5+
Composer Plugin 2+

Migrate to PHPUnit 7.1

Merge pull request #16 from bluzphp/develop

Migrated to PHPUnit 7.1

Migrate to PHP 7.1

Merge pull request #15 from bluzphp/develop

Migrate to PHP 7.1

Fixed `remove` module

Merge pull request #14 from bluzphp/develop

Fixed `remove` module

Fixed uninstall script

Merge pull request #13 from bluzphp/develop

 Hotfix critical issue

Fixed un/install scripts

Merge pull request #13 from bluzphp/develop

 Hotfix critical issue

Fixed Package Events

Merge pull request #12 from bluzphp/develop

Fixed Package Event listeners

Hotfix for `copy-files` vendor path

Merge pull request #10 from bluzphp/develop

Hotfix vendor path

Hotfix for `copy-files`

Merge pull request #9 from bluzphp/develop

Hotfix for installer

Switch to `post-create-project-cmd` event

Merge pull request #8 from bluzphp/develop

Switch to `post-create-project-cmd` event