Add QGeoJson: a GeoJSON parser

Add a Class to convert a GeoJSON document to a QVariantList ready to be
used as Model in a MapItemView. It comes with autotests, example and
detailed documentation.

[ChangeLog][QtLocation] Added a GeoJSON parser which can be used to
annotate maps with tracks, polygonal boundaries, etc.

Fixes: QTBUG-64111
Change-Id: Ib06d3902a052f69f75ae40be5c9ab56023cad916
Reviewed-by: Paolo Angelelli <paolo.angelelli@qt.io>

1 files changed, 374 insertions, 0 deletions

diff --git a/tests/auto/qgeojson/11-full.json b/tests/auto/qgeojson/11-full.json
new file mode 100644
index 00000000..cd8680c9
--- /dev/null
+++ b/tests/auto/qgeojson/11-full.json
@@ -0,0 +1,374 @@
+{
+    "type":"FeatureCollection",
+    "features":[
+        {
+            "type":"Feature",
+            "geometry":{
+                "type":"Point",
+                "coordinates":[
+                    3,
+                    11
+                ]
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+            "properties":{
+                "name":null
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+        {
+            "type":"Feature",
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+                "type":"MultiPoint",
+                "coordinates":[
+                    [
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+                    [
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+                    [
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+                    ]
+                ]
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+            "properties":{
+                "name":null
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+        {
+            "type":"Feature",
+            "geometry":{
+                "type":"LineString",
+                "coordinates":[
+                    [
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+                    [
+                        3,
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+                    [
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+                ]
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+            "properties":{
+                "color":"red",
+                "thickness":1.1
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+        {
+            "type":"Feature",
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+                "type":"MultiLineString",
+                "coordinates":[
+                    [
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+            "properties":{
+                "happyness":"a lot",
+                "hope":"a wee"
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+            "type":"Feature",
+            "geometry":{
+                "type":"MultiPolygon",
+                "coordinates":[
+                    [
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+                "name":null
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+        {
+            "type":"Feature",
+            "geometry":{
+                "type":"GeometryCollection",
+                "geometries":[
+                    {
+                        "type":"Point",
+                        "coordinates":[
+                            13,
+                            4
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+                    {
+                        "type":"Polygon",
+                        "coordinates":[
+                            [
+                                [
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+    ]
+}