Introduce and use IRunConfiguration::addSupportedTargetDeviceType

In line with addSupportedProjectType, saves a few cycles due to the
non-use of the temporary list, and in theory more flexible than the
existing set...(QList<Id>) as it potentially allows dependent plugin
to declare support for already existing configurations instead of
re-implementing their own.

Change-Id: I2b83e90de49daa9bfce6f780c5f51c2e971eb7d1
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/runconfiguration.cpp

@@ -488,6 +488,11 @@ void IRunConfigurationFactory::setSupportedTargetDeviceTypes(const QList<Core::I
     m_supportedTargetDeviceTypes = ids;
 }
 
+void IRunConfigurationFactory::addSupportedTargetDeviceType(Core::Id id)
+{
+    m_supportedTargetDeviceTypes.append(id);
+}
+
 void IRunConfigurationFactory::addSupportedProjectType(Core::Id id)
 {
     m_supportedProjectTypes.append(id);