WebSearch: manifold SPIRES syntax bugfixes

• Correct exactauthor/author or'ing behavior (closes:#14512)

• accept "f" as an abbrev for find (SPIRES did)

• find title this and that -> title:this and title:that (closes: #14028)

• Complete name variant truncation for first and middle names.

• protecting quotes in exact author, so ea does not overwrite exactauthor searches produced in author

• Parens wrap the full search produced by author searching (closes:#13986)

• New Test cases for exact author, double last names, multiple middle initials, single names

• All tests pass (some from rewriting the tests, some from fixing the code)