* Remove internal units from BASE_SCREEN and it's derivatives.
* Remove internal units from EDA_DRAW_FRAME and it's derivatives.
* Use build time code to replace internal units conversions.
* Fix scaling bug in page layout sample window that I created in my
last commit.
* Remove sine and cosine look up tables from trigo.cpp and replace them with
sin() and cos() math functions.
* Large include file clean up to prevent header ordering dependency build
failures.
* Translate French code names and comments.
* Lots of coding style policy and doxygen comment fixes.
Wayne Stambaugh
Dick Hollenbeck
charras