add socket activation for extensions (#118)

Option `X-AW-Socket` is used. Any message received by this socket will
trigger extension update. If the option is set, `X-AW-Interval` will be
ignored

sources/extsysmonsources/customsource.cpp

@@ -30,6 +30,7 @@ CustomSource::CustomSource(QObject *parent, const QStringList args)
 
     m_extScripts
         = new ExtItemAggregator<ExtScript>(nullptr, QString("scripts"));
+    m_extScripts->initSockets();
     m_sources = getSources();
 }
 

sources/extsysmonsources/quotessource.cpp

@@ -29,6 +29,7 @@ QuotesSource::QuotesSource(QObject *parent, const QStringList args)
     qCDebug(LOG_ESS) << __PRETTY_FUNCTION__;
 
     m_extQuotes = new ExtItemAggregator<ExtQuotes>(nullptr, QString("quotes"));
+    m_extQuotes->initSockets();
     m_sources = getSources();
 }
 

sources/extsysmonsources/requestsource.cpp

@@ -30,6 +30,7 @@ RequestSource::RequestSource(QObject *parent, const QStringList args)
 
     m_extNetRequest = new ExtItemAggregator<ExtNetworkRequest>(
         nullptr, QString("requests"));
+    m_extNetRequest->initSockets();
     m_sources = getSources();
 }
 

sources/extsysmonsources/upgradesource.cpp

@@ -30,6 +30,7 @@ UpgradeSource::UpgradeSource(QObject *parent, const QStringList args)
 
     m_extUpgrade
         = new ExtItemAggregator<ExtUpgrade>(nullptr, QString("upgrade"));
+    m_extUpgrade->initSockets();
     m_sources = getSources();
 }
 

sources/extsysmonsources/weathersource.cpp

@@ -30,6 +30,7 @@ WeatherSource::WeatherSource(QObject *parent, const QStringList args)
 
     m_extWeather
         = new ExtItemAggregator<ExtWeather>(nullptr, QString("weather"));
+    m_extWeather->initSockets();
     m_sources = getSources();
 }