Improved implementations #618, #601 and #628 Additionally sped up some matrix operations
Fixed the docstring for `strfill()`. In reference to #618.
Improved the "list plugins" command to display a well formated table that is adapted to the display size. Corresponding to ticket #612. Reworked the line break method and split it into two seperate parts.
Implemented ticket #625 "Variable viewer improvements"
Fixed some issues introduced with implementation of #642
Implemented ticket #644 "Create matop function for calculating the length of a polygon"
Implemented ticket #642 "Improve 'new' command"
Implemented ticket #603 "timeformat() and to_time() shall support ms and µs"
Implemented ticket #628 "Autodetect date/time in files and pasted tables"
Implemented ticket #611 "Create a try-catch statement"