Updated LICENSE

Fixed namespace usages for polyfill packages
Added dependency Symfony\polyfill-uuid
Updated .gitignore
Updated autoload.php
Corrected .gitignore
Added dependency nikic\PhpParser
Removed .idea leftovers
Added classes & objects for Package Structure 1.0
Updated autoload.php for tests

tests/example_project/src/ExampleLibrary/Objects/Person.php

@@ -0,0 +1,123 @@
+<?php
+
+    namespace ExampleLibrary\Objects;
+
+    use ExampleLibrary\Exceptions\InvalidNameException;
+
+    class Person
+    {
+        /**
+         * @var string
+         */
+        private string $FirstName;
+
+        /**
+         * @var string
+         */
+        private string $LastName;
+
+        /**
+         * Public Constructor
+         *
+         * @param string|null $name
+         * @throws InvalidNameException
+         */
+        public function __construct(?string $name=null)
+        {
+            if($name !== null)
+            {
+                $exploded_name = explode(' ', $name);
+
+                if(count($exploded_name) < 2)
+                {
+                    throw new InvalidNameException('The given name must contain a first and last name.');
+                }
+
+                $this->FirstName = $exploded_name[0];
+                $this->LastName = $exploded_name[1];
+            }
+
+        }
+
+        /**
+         * Sets the first name of the person.
+         *
+         * @param string $FirstName
+         */
+        public function setFirstName(string $FirstName): void
+        {
+            $this->FirstName = $FirstName;
+        }
+
+        /**
+         * Gets the last name of the person.
+         *
+         * @return string
+         */
+        public function getLastName(): string
+        {
+            return $this->LastName;
+        }
+
+        /**
+         * Sets the last name of the person.
+         *
+         * @param string $LastName
+         */
+        public function setLastName(string $LastName): void
+        {
+            $this->LastName = $LastName;
+        }
+
+        /**
+         * Gets the first name of the person.
+         *
+         * @return string
+         */
+        public function getFirstName(): string
+        {
+            return $this->FirstName;
+        }
+
+        /**
+         * Returns a string representation of the person.
+         *
+         * @return string
+         */
+        public function __toString()
+        {
+            return implode(' ', [$this->FirstName, $this->LastName]);
+        }
+
+        /**
+         * Returns an array representation of the person
+         *
+         * @return array
+         */
+        public function toArray(): array
+        {
+            return [
+                'first_name' => $this->FirstName,
+                'last_name' => $this->LastName
+            ];
+        }
+
+        /**
+         * Constructs object from an array representation
+         *
+         * @param array $data
+         * @return Person
+         */
+        public static function fromArray(array $data): Person
+        {
+            $person = new Person();
+
+            if(isset($data['first_name']))
+                $person->FirstName = $data['first_name'];
+
+            if(isset($data['last_name']))
+                $person->LastName = $data['last_name'];
+
+            return $person;
+        }
+    }