imageinfo: outsource support info init into own member

Origin commit data
------------------
Commit: a82726c86a
Author: Thilo Graf <dbt@novatux.de>
Date: 2020-10-26 (Mon, 26 Oct 2020)

src/gui/imageinfo.cpp

@@ -389,6 +389,12 @@ void CImageInfo::InitInfoData()
 	//internal api versions
 	initAPIVersions();
 
+	//support infos
+	initSupportInfo();
+}
+
+void CImageInfo::initSupportInfo()
+{
 	//www
 	v_info.push_back({g_Locale->getText(LOCALE_IMAGEINFO_HOMEPAGE),	config.getString("homepage", PACKAGE_URL)});
 	//doc

src/gui/imageinfo.h

@@ -59,6 +59,7 @@ class CImageInfo : public CMenuTarget
 		void InitInfos();
 		void InitBuildInfos();
 		void InitInfoText(const std::string& text);
+		void initSupportInfo();
 		void initAPIVersions();
 		std::string getLicenseText();
 		std::string getPolicyText();