Codechange: [Blitter] Change DrawLine to be templated

This is remove per-pixel overheads due to use of the SetPixel virtual
method.
These overheads included:
* expensive virtual method call which prevents inlining
* palette lookup for every pixel
* branch on whether palette animation is enabled on every pixel

Regenerate project files.

source.list

@@ -948,8 +948,8 @@ blitter/8bpp_optimized.hpp
 blitter/8bpp_simple.cpp
 blitter/8bpp_simple.hpp
 #end
-blitter/base.cpp
 blitter/base.hpp
+blitter/common.hpp
 blitter/factory.hpp
 blitter/null.cpp
 blitter/null.hpp