Version log support_marecotoxpackage for BYOM

Version logging starts with 2.0 (earlier version have not been logged).

Version 2.0 (27 April 2017)

- Modified package so it runs with BYOM 4.0.

Version 2.1 (9 August 2018)

- Modified the survival-modelling example to use the files from the GUTS package v.2.2 (the 'sd_special' folder, to use the analytical solution for GUTS-RED-SD).

Version 2.2 (1 December 2021)

- Modified package so it runs with BYOM 6.0.