Hello all

A first implementation of the Military Grid Reference System (MGRS) has
been completed on the JDK8 branch, covering both the Universal
Transverse Mercator (UTM) and Universal Polar Stereographic (UPS) cases.
Work is now under way for retrofitting this implementation in an API
derived from the ISO 19112 model (Spatial referencing by geographic
identifiers). Before to continue this work, I moved the
"org.apache.sis.referencing.gazetteer" package in its own module, namely
"sis-referencing-by-identifiers". The rational is:

  * This module is currently small but may grow a lot in the future,
    given the large amount of different conventions that exist for
    geographic identifiers (e.g. different address / postal codes
    systems in different countries).
  * Other Apache SIS modules need referencing by coordinates, but not
    referencing by identifiers.

Any objection to this move?

As a side note, this work requires the addition of 4 new GeoAPI
interfaces derived from ISO 19112 [1]. I have put those interfaces in
the "pending" section of GeoAPI (not in the main one) - i.e. not
targeted to any particular GeoAPI release - because ISO 19112 is
currently in 90.92 stage (International Standard to be revised). Indeed,
ISO 19112 in its current form was designed for the old version of ISO
19115 and has some compatibility problems with the new version of ISO
19115. I will bring this subject later on the OGC GeoAPI mailing list.

    Martin


[1] 
http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=26017

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