conhost: Implement F1 and F3 support for history retrieval.
F1 and F3 allow partial retrieval of previous entry from console history. They are used as shortcuts such that if the following were entered at the command line:
md tmptmp
cd <F3>
F3 will retrieve the previous line from history past the cursor position, and be auto-completed to "cd tmptmp". F1 works in a similar fashion, but with one character at a time.
Edited by Joe Souza