corrected several bugs

--occasionally during the running of the program the contours produced by opencv switches orientation. THis used to caue a jump inthe rotation matrix (rvec). This is fixed in 'findPatter.cpp, objectPoints'
--win_width and win_height of both ar and calib3d project are now the image dimensions of capture output
--In findPattrern.cpp, the input to solvePnp shluld have the correct dimensions (2*squareSize*3 x 2*squareSize*3)
--In ogl.cpp, _buildProjectionMatrix, no need to pass in left, right, top, bottom, these are calculated from, near, far and the intrinsic matrix
--In ogl.cpp, view matrix is always identity matrix. So _buildViewMatrix shild always return an identity matrix
--Adding small transparency for the tetrahedron
--During calibration, the checker board is supposed to cover the entire area of the capture window, perfectly aligned, Hence the objectPosition should be appropriately adjusted
cleaning up code

--renamed oglScene to oglAugmentedScene
--moved common functions to libKgCommon.a
cleaning up code
--renamed calib3d/settings.hpp calib3d/settings.h
cleaning up
cleaning up code

--renamed ar/ogl to ar/oglMain