Use in API and utilities WKT2_2019 instead of WKT2_2018 (fixes #1518)

- C API: PJ_GUESSED_WKT2_2019 is added, PJ_GUESSED_WKT2_2018 aliased to it
- C API: PJ_WKT2_2019[_SIMPLIFIED] is added, PJ_WKT2_2018[_SIMPLIFIED] alias to it
- C++ API: similarly for WKTFormatter::Convention::WKT2_2019[_SIMPLIFIED]
Those above changes should be fully backward API and ABI compatible.

projinfo changes:
- accept WKT2_2019 as value for -o switch. WKT2_2018 is still accepted (undocumented)
- output now uses 'WKT2_2019 string:', so might break scripts that would rely on that.

Other internal code references to WKT2_2018 changes to WKT2_2019, included
in tests.

1 files changed, 7 insertions, 7 deletions

diff --git a/src/iso19111/coordinatesystem.cpp b/src/iso19111/coordinatesystem.cpp
index 5a852b0d..c58fcaaa 100644
--- a/src/iso19111/coordinatesystem.cpp
+++ b/src/iso19111/coordinatesystem.cpp
@@ -519,7 +519,7 @@ void CoordinateSystem::_exportToWKT(
     const auto &l_axisList = axisList();
     if (isWKT2) {
         formatter->startNode(io::WKTConstants::CS_, !identifiers().empty());
-        formatter->add(getWKT2Type(formatter->use2018Keywords()));
+        formatter->add(getWKT2Type(formatter->use2019Keywords()));
         formatter->add(static_cast<int>(l_axisList.size()));
         formatter->endNode();
         formatter->startNode(std::string(),
@@ -1268,8 +1268,8 @@ DateTimeTemporalCS::create(const util::PropertyMap &properties,
 
 // ---------------------------------------------------------------------------
 
-std::string DateTimeTemporalCS::getWKT2Type(bool use2018Keywords) const {
-    return use2018Keywords ? "TemporalDateTime" : "temporal";
+std::string DateTimeTemporalCS::getWKT2Type(bool use2019Keywords) const {
+    return use2019Keywords ? "TemporalDateTime" : "temporal";
 }
 
 // ---------------------------------------------------------------------------
@@ -1301,8 +1301,8 @@ TemporalCountCS::create(const util::PropertyMap &properties,
 
 // ---------------------------------------------------------------------------
 
-std::string TemporalCountCS::getWKT2Type(bool use2018Keywords) const {
-    return use2018Keywords ? "TemporalCount" : "temporal";
+std::string TemporalCountCS::getWKT2Type(bool use2019Keywords) const {
+    return use2019Keywords ? "TemporalCount" : "temporal";
 }
 
 // ---------------------------------------------------------------------------
@@ -1334,8 +1334,8 @@ TemporalMeasureCS::create(const util::PropertyMap &properties,
 
 // ---------------------------------------------------------------------------
 
-std::string TemporalMeasureCS::getWKT2Type(bool use2018Keywords) const {
-    return use2018Keywords ? "TemporalMeasure" : "temporal";
+std::string TemporalMeasureCS::getWKT2Type(bool use2019Keywords) const {
+    return use2019Keywords ? "TemporalMeasure" : "temporal";
 }
 
 } // namespace cs