Simulator cleanup and CSVUtils module created

CSVUtils will have the CSV Writer in addition to the old csv_reader
(Now CSVUtils.Reader)
Code cleanup. Introducing empty ExportGUI Panel

Code cleanup improving readability and deleting some unnecessary
references in some files.
First CSV Export logic commit
X axis label (t (s)) & comments in docstring conv.

Comments in this class weren’t in docstring convention, now they are,
plus x axis label set by default and functions to change x label, y
label and plot title.
Comment correction.
DataGUI layout fix.

Now all pages of the lower pager have the same border, so paging should
look smoother.
ExportGUI page layout. Awaiting for widgets.

Nevermind the ojete button, pl0x.