added remote base url to the network settings
added the base class for remote resources
created the qgssymbolresource and removed the remote base class files
integrated the remote resource core to gui; populates tags & authors
symbol import dialog gets and displays symbols for authors
symbol repo integrated with import for authors and tags
included online repo with tags & authors in symbol mgr
symbol manager lists the symbols from online repo based on tags and authors
online symbols import using context menu
importing from online repo happens using Share menu Import action