Movee Formatters to Type factory

Signed-off-by: davidarendsen <davidarendsen@hey.com>

tests/Generic/FormattersTest.php

@@ -1,33 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Tests\Generic;
-
-use DateTime;
-use Arendsen\FluxQueryBuilder\Formatters;
-use PHPUnit\Framework\TestCase;
-
-final class FormattersTest extends TestCase
-{
-    public function testAssociativeArrayNested()
-    {
-        $array = [
-            'columns' => ['foo', 'bar'],
-            'mode' => 'by'
-        ];
-
-        $expected = 'columns: ["foo", "bar"], mode: "by"';
-
-        $this->assertEquals($expected, Formatters::toFluxArrayString($array));
-    }
-
-    public function testDateTimeToString()
-    {
-        $dateTime = new DateTime('2022-08-12 17:31:00');
-
-        $expected = 'time(v: 2022-08-12T17:31:00Z)';
-
-        $this->assertEquals($expected, Formatters::dateTimeToString($dateTime));
-    }
-}