Add sourceSelectProviders() to the ogr data provider

This is the first data provider real implementation,
all other data provider will follow.

src/providers/ogr/qgsogrdataitems.h

@@ -50,4 +50,5 @@ class QgsOgrDataCollectionItem : public QgsDataCollectionItem
 };
 
 
+
 #endif // QGSOGRDATAITEMS_H

src/providers/ogr/qgsogrprovider.cpp

@@ -35,6 +35,8 @@ email                : sherman at mrcc.com
 #include "qgsogrdataitems.h"
 #include "qgsgeopackagedataitems.h"
 #include "qgswkbtypes.h"
+#include "qgssourceselectprovider.h"
+#include "qgsogrsourceselect.h"
 #include "qgis.h"
 
 
@@ -4346,3 +4348,29 @@ QGISEXTERN bool deleteLayer( const QString &uri, QString &errCause )
   errCause = QObject::tr( "Layer not found: %1" ).arg( uri );
   return false;
 }
+
+
+//! Provider for OGR vector source select
+class QgsOgrVectorSourceSelectProvider : public QgsSourceSelectProvider
+{
+  public:
+
+    virtual QString providerKey() const override { return QStringLiteral( "ogr" ); }
+    virtual QString text() const override { return QObject::tr( "Vector" ); }
+    virtual QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/mActionAddOgrLayer.svg" ) ); }
+    virtual QgsAbstractDataSourceWidget *createDataSourceWidget( QWidget *parent = nullptr ) const override
+    {
+      return new QgsOgrSourceSelect( parent );
+    }
+};
+
+
+QGISEXTERN QList<QgsSourceSelectProvider *> *sourceSelectProviders()
+{
+  QList<QgsSourceSelectProvider *> *providers = new QList<QgsSourceSelectProvider *>();
+
+  *providers
+      << new QgsOgrVectorSourceSelectProvider;
+
+  return providers;
+}