Optimize Numeric using fixed buffer reducing pallocs for small numbers

When Who What
2023-09-13 14:04:24 Peter Eisentraut (petere) Closed in commitfest 2023-09 with status: Returned with feedback
2023-08-02 19:21:54 Daniel Gustafsson (d_gustafsson) Closed in commitfest 2023-07 with status: Moved to next CF
2023-04-09 02:29:04 Greg Stark (stark) Closed in commitfest 2023-03 with status: Moved to next CF
2023-03-02 11:02:13 Dean Rasheed (deanr) Added deanr as reviewer
2023-02-20 08:02:35 Joel Jacobson (joeljacobson) Changed authors to Joel Jacobson (joeljacobson)
2023-02-20 08:02:22 Joel Jacobson (joeljacobson) Attached mail thread 35fb0533-1e3e-42f6-b989-ce1f9b5f3ebe@app.fastmail.com
2023-02-20 08:02:21 Joel Jacobson (joeljacobson) Created patch record