rename of json package to stringify, type2 word generator, updated

ChatGPTParsing/src/grammar/Grammar.java

ChatGPTParsing/src/grammar/Type2Grammar.java

ChatGPTParsing/src/grammar/Type3Grammar.java

ChatGPTParsing/src/stringify/GrammarToString.java

ChatGPTParsing/src/stringify/JSONArray.java

ChatGPTParsing/src/stringify/JSONBoolean.java

ChatGPTParsing/src/stringify/JSONDatatype.java

ChatGPTParsing/src/stringify/JSONNumber.java

ChatGPTParsing/src/stringify/JSONObject.java

ChatGPTParsing/src/stringify/JSONString.java

ChatGPTParsing/src/type2/Type2Parser.java

ChatGPTParsing/src/type3/Type3Parser.java

ChatGPTParsing/src/word_generator/WordGenerator.java

ChatGPTParsing/src/writer/Writer.java