P0843R14 inplace_vector

Editor notes:
* Unable to apply change to Complexity for "a.swap(b)" in section
  [container.reqmts]; only such \itemdecl is in [container.alloc.reqmts]
  with different wording.
* Unable to apply change to note under "sequence.reqmts.2" - wording does not
  appear to exist.
* Sections named [containers.sequences.inplace.vector.*] renamed to
  [inplace.vector.*].
* [inplace.vector.modifiers] Add comma for clarity.
* [inplace.vector] Minor editorial fixes (e.g. add missing "the").

Author: burblebee

source/compatibility.tex

@@ -87,6 +87,7 @@
 The following \Cpp{} headers are new:
 \libheaderref{debugging},
 \libheaderrefx{hazard_pointer}{hazard.pointer.syn},
+\libheaderrefx{inplace_vector}{inplace.vector.syn},
 \libheaderref{linalg},
 \libheaderref{rcu}, and
 \libheaderrefx{text_encoding}{text.encoding.syn}.