AIT Printing Improvements

[mbarto]

We collect here all the improvements to the GeoNode/MapStore printing engine we have to implement for AIT.

The accepted proposal is here: https://docs.google.com/document/d/1w1CkHBrfRFdFTNl6O9OEpBxHqIuwi4IrVXehaynh30I/edit#heading=h.hpvkr3wxmvs0

The list of improvements include:

• Map projection selection for printing (epsg:4326,epsg:32647,epsg:32648)
• Add Graticule Grids in printing, with labelling for Lat-Lon (EPSG:4326) or metric (UTM, epsg:32647 and epsg:32648)
• Export format selection (JPEG, PDF, TIFF)
• Current map scale shown in printing dialog and printed page
• Additional text input in printing dialog (in addition to title and description), to be put in a specific place of the printed page

A document on the current status of integration of this library in GeoSolutions product is here: https://docs.google.com/document/d/1-AcWXwT_TFVPUzV2qAoSnQjxI7Glyc7bgUY0Ja5xc7M/edit?usp=sharing

[mbarto]

Sample UI with some of the custom controls: