gui: change slightly the log format to be more readable

don't force the size of the each message in the file log
gui: fix usage of real_to_world_pos

needs a tuple as argument
gui: fix tab display on SECOM

two problems mostly:
 * AnalysisTab is hardcoded to use the sparc_analysis views, so we'd better only use them (and not the secom equivalent)
   => disable secom_gallery, and allow sparc_analysis to be used for 2 roles
 * the first .Show() of a tab seems to require to have the frame not frozen. Ensure it is.