Fixed bug in 'JsonParser::skipWhitespace'

Method read last char even if it was not a whitespace character. Was only noticeable when reading a stream containing UTF-8 sequences

JsonParser now only takes stream references as argument

'JsonParser::JsonParser()' and '::parse' now only take a Stream reference as an argument

'JsonParser::parseIntArray' now ignores negative numbers depending on type

'::parseIntArray' now automatically ignores negative integers depending on the type

Fixed bug in 'JsonParser::readString'

Fixed major bug in 'JsonParser::readString'

Method was parsing chars as if they were numbers (i.e 'a' -> "97")

Replaced 'JsonParser::enterCollection'

Replaced 'JsonParser::enterCollection' with '::enterArr' and '::enterObj'

Fixed bug in 'JsonParser::readString' and '::skipString'

When the methods were checking for the opening '"' of the String, they didn't peek, but read!!! the Stream

Simplified usage of 'JsonParser::next'

'JsonParser::next' doesn't exit current obj/arr anymore

Usage '::next', and methods using it, was not intuitive and confusing. Change has only  minimal impact on performance

Changed return type of 'JsonParser::nextKey' to bool

Instead of returning the key, the method stores it in a buffer and indicates if a key exists. Previously it was impossible to know if the method failed ( because "" is a valid Json key)

JsonParser::strcmp

Added 'JsonParser::strcmp'

Split 'JsonParser.cpp' into 'JsonParserImpl.cpp' and 'JsonParserNav.cpp'

UTF-8 support

Added UTF-8 support