this allows callers of Buildings::setSize() to "pre-initialize" the
extents to declare non-rectangular structures. this allows quickfort to
create non-rectangular stockpiles, farm plots, zones, etc. the extents
are still reset as before if the size of the building doesn't match the
caller's expectations.
this commit also fixes a memory leak when setSize() allocates memory for
extents, but the memory is not deallocated if the building is ultimately
invalid for some reason.
- move the alias syntax and usage docs from dfhack-config/quickfort/aliases.txt to a proper guide written in RST. Add examples and more details.
- move the alias library docs from data/quickfort/aliases-common.txt to the new guide
- reorder aliases in aliases-common to match the order in the docs
- factor out the character used to enter the stockpile config screen so we can use the same aliases for stockpiles and hauling routes (use 's' for stockpiles and '{Enter}' for hauling routes)
- reference the new guide in the quickfort user guide
- do an editorial pass of the quickfort user guide
- change name to "Quickfort Blueprint Guide", but only in the text, not the filename, so we don't change the URL
- add `quickfort-blueprint-guide` as a label, in addition to the existing `quickfort-user-guide`
- changed table-like lists to actual tables
- changed "grid" tables into "simple" tables where possible
- used ':kbd:' markers whenever we refer to a single character
- turned Meta blueprints and Notes blueprints sections into subsections of a new "Other blueprint modes" section, in preparation for a few new modes coming in -r5.
- updated out-of date caveat about bookcases, display furniture, and offering places not being supported