P0843R14 inplace_vector

Editorial 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").
* [inplace.vector.overview] Fix punctuation in bulleted sub-list to be consistent.

Author: burblebee

source/compatibility.tex

@@ -133,6 +133,7 @@
 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}.