Added "AccurateText" option [Rainmeter] section of a skin.

When AccurateText=0 (default) and UseD2D=0, inaccurate GDI+ measuring of text is used
When AccurateText=1 and UseD2D=0, Accurate measuring occurs similar to D2D
When AccurateText=0 and UseD2D=1, D2D adds padding to the text similar to GDI+
When AccurateText=1 and UseD2D=1, Accurate measuring occurs using D2D

Common/Gfx/Canvas.cpp

@@ -22,7 +22,8 @@ namespace Gfx {
 
 Canvas::Canvas() :
 	m_W(),
-	m_H()
+	m_H(),
+	m_AccurateText(false)
 {
 }