Printing: export a statistics data structure to the Grantlee backend

Add a YearInfo class which represents a year statistics. Export the
class to the Grantlee backend, also export all it's members to the
printing backend.

Signed-off-by: Lubomir I. Ivanov <neolit123@gmail.com>
Signed-off-by: Gehad elrobey <gehadelrobey@gmail.com>

templatelayout.cpp

@@ -316,3 +316,13 @@ void Dive::put_sac()
 		m_sac = QString::number(value, 'f', decimal).append(unit);
 	}
 }
+
+YearInfo::YearInfo()
+{
+
+}
+
+YearInfo::~YearInfo()
+{
+
+}