Add Software Developers monthly meeting page

[strixy16]

Is your enhancement request related to a missing topic or an unclear explanation?
Pages exist describing the radiomics and PGx team meetings, should have an equivalent for the monthly Software Development meeting.

Describe the improvement you'd like
Add a page docs/General/Meetings/software_dev_meeting.md that has a description of the meeting, expectations, link to any agenda notes etc. like the radiomics and PGx meeting pages.

This page should be linked in table on the Meetings/index.md.