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- WKT2 grammar: accept PARAMETER[name,value,id] without unit
- Recognize "Ellipsoid scaling factor" as a parameter with a scaling unit,
and defaults to Unity when not specified
- WKT2 parsing: implement the requirement of 18-010r7.html#80, that is
when a map projection parameter has no explicit unit, use metre/degree/unity
as the default unit (contrary to WKT1 parsing rules where they are deduced
from the GeogCRS angular unit and coordinate system)
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This is a peculiarity of the WKT grammar. Despite ISO 19111 saying that the
prime meridian is a component of the datum, in WKT, they are placed at the
same level, for backward compatibility with earlier WKT versions. So handle
exporting and importing that. The fix is only for situation where DATUM is
the top level object (was working fine otherwise), which is a uncommon use
case. And to limit the amount of issue, on export emit the prime meridian only
if it is not Greenwich.
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TIMEUNIT is at the CS level, and not inside (#2276)
Adresses testTemporal() and testCompoundWithTime() cases of
https://github.com/OSGeo/PROJ/issues/2275#issuecomment-650765730
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- Allow ID[] in base CRS of Derived CRS
- Allow VERSION[] in non-conversion coordinate operations
- Use VERSION[] to set operationVersion member of CoordinateOperation
- Export operationVersion in WKT2:2018
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operations when neededs (fixes #1197)
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