Implemented enhanced parser

extension/Classes/Core/Constants.php

extension/Classes/Core/Helper/JWT.php

extension/Classes/Core/Parser/KVPairListParser.php

extension/Classes/Core/Parser/MixedTypeParser.php

extension/Classes/Core/Parser/SimpleParser.php

extension/Classes/Core/Parser/StringTokenizer.php

extension/Classes/Core/Parser/Token.php

extension/Classes/Core/Parser/TokenBuilder.php

extension/Classes/Core/Report/Report.php

extension/Tests/Unit/Core/Parser/KVPairListParserTest.php

extension/Tests/Unit/Core/Parser/MixedTypeParserTest.php

extension/Tests/Unit/Core/Parser/SimpleParserTest.php

extension/Tests/Unit/Core/Parser/StringTokenizerTest.php

extension/composer.json