added functionality for callbacks before/after create/delete

[silentpatrik]

This makes some things when for example setting up new projects or doing heavy backend processing like setting up or compiling or anything not supposed to last after their execution,

Not the best example, but to illiustrate usage:
App/Console/Commands/InstallCommand.php

// file: App/Console/InstallCommand.php

private $commands=[
    'git clone xxx ',
    'wget somebigfile',
    'echo "installing stuff and unpacking somebigfile"'
];
function install()
{
    $temporaryDirectory = (new TemporaryDirectory())
        ->useLifecycleEvents()
        ->afterCreate(function($temporaryDirectory) {
            foreach($this->commands as $cmd) {
            Process::path($temporaryDirectory()->path())->run($cmd);
            }
    })->create();
}

Usage :

   $temporaryDirectory = (new TemporaryDirectory())->useLifecycleEvents()
        ->beforeCreate(function() { /*code to be executed*/ })
        ->afterCreate(function() { /*code to be executed*/ }
        ->beforeDelete(function() { /*code to be executed*/ })
        ->afterDelete(function() { /*code to be executed*/ })

Multiple functions can be chained:

   $temporaryDirectory = (new TemporaryDirectory())->useLifecycleEvents()
        ->beforeCreate(function() { /*code to be executed*/ })
        ->beforeCreate(function() { /*code to be executed*/ })
        ->beforeCreate(function() { /*code to be executed*/ })

or as an array of closures:

   $temporaryDirectory = (new TemporaryDirectory())->useLifecycleEvents()
        ->beforeCreate([
            function() { /*code to be executed*/ },
            function() { /*code to be executed*/ },
            function() { /*code to be executed*/ }
        ])->create();

[freekmurze]

I'm going to hold off on this to keep the package simple. Feel free to create a fork and apply your changes there.