Global memory consolidation / optimization

[christophersanborn]

We are using some seriously large buffers and a lot of book-keeping variables in the global space.

Can some of these be optimized, removed, made smaller?

Can we make better use of "unions" to "reclaim and reuse" space for some structures that are not needed concurrently?

Related:

• BSS Section size tracking (BSS Section size tracking #23)
• Implement a Stack Canary (Implement a Stack Canary #16)

[christophersanborn]

Some progress has been made on this. In the course of refactoring the UI (#22), numerous globals have been reorganized and some unused ones removed. We are actually being "reasonably" efficient so far. I'd say there still remains some to do, but calling this a low priority issue for now.