HPCC-11587 Add 'Open In New Page' to Package Map area

The code for the Package Map display is upgraded to support
the function of 'Open In New Page'.

Signed-off-by: wangkx <kevin.wang@lexisnexis.com>
No the "Ws" file.

The pattern is:
WsXXX file (which should match an ESP Service), will do all the ESPRequest.send calls - this will allow a central place to "fix up" requests and responses as needed (and do things like the error reporting etc.

ESPxxx is used for create the JavaScript Object Singletons for things like workunits, logical files, queries etc.  So ESPWorkunit will create a JavaScript object which represents a single WU, and it will call WsWorkunits as it needs to...