Changed Controls to deal with renderer instead of Gl_context and View_transforms directly.
Adding Console class to the project. Empty at this point.
Added libsigc++ to lib folder. Linked from /usr/local/lib to the compilation. Updated Controls to include
sigc++.  :
Setup first POC signal/slot with controls/renderer.
Moved renamed class Font to Text. Updated renderer with this.
Removed font source files.
Added another loop in Engine for processing user input. It is slower than game tick to reduce input events.
 ?
Removed text writing from renderer and moved it to console via functions.