refactor: remove builder class and use concrete class

tests: added more unit tests for event processor

src/Config.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace Aerex\TaskwarriorPlugin;
+
+
+
+class Config {
+
+  public function __construct(){
+
+  }
+
+  public function getTaskwarriorInstance(){
+
+    if(!$this->isValidConfiguration()){
+      $invalidConfigurationString = $this->invalidConfigurations();
+
+      $invalidConfigurationMessage = sprintf('The following configurations are invalid %s and' .
+       ' the default configurations will be used', $invalidConfigurationString);
+      echo($invalidConfigurationMessage);
+
+      $this->setDefaults();
+    }
+
+    $this->taskrc = $this->getTaskRC();
+    $this->taskDataDir = $this->getTaskDataDir();
+    $this->taskBinFile = $this->getTaskBinFile();
+
+    $this->taskwarrior = new $Taskwarrior($this->taskrc,$this->taskdatadir, [], $this->taskbinfile);
+  }
+
+
+  public function getLogger(){
+    return $this->logger;
+  }
+  public function setLogger($logger){
+    $this->logger = $logger;
+
+  }
+  public  function isValidConfigurations(){
+
+  }
+
+  public function setDefaults(){
+
+  }
+
+  public function getTaskRC() {
+
+  }
+
+
+  public function getTaskDataDir(){
+
+  }
+
+  public function getTaskBinFile(){
+
+  }
+
+}
+?>