added reverse history search to redis-cli, use it with the following:
* CTRL+R : enable search backward mode, and search next one when
pressing CTRL+R again until reach index 0.
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(reverse-i-search): # press CTRL+R
(reverse-i-search): keys two # input `keys`
(reverse-i-search): keys one # press CTRL+R again
(reverse-i-search): keys one # press CTRL+R again, still `keys one` due to reaching index 0
(i-search): keys two # press CTRL+S, enable search forward
(i-search): keys two # press CTRL+S, still `keys one` due to reaching index 1
```
* CTRL+S : enable search forward mode, and search next one when pressing
CTRL+S again until reach index 0.
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(i-search): # press CTRL+S
(i-search): keys one # input `keys`
(i-search): keys two # press CTRL+S again
(i-search): keys two # press CTRL+R again, still `keys two` due to reaching index 0
(reverse-i-search): keys one # press CTRL+R, enable search backward
(reverse-i-search): keys one # press CTRL+S, still `keys one` due to reaching index 1
```
* CTRL+G : disable
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(reverse-i-search): # press CTRL+R
(reverse-i-search): keys two # input `keys`
127.0.0.1:6379> # press CTRL+G
```
* CTRL+C : disable
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(reverse-i-search): # press CTRL+R
(reverse-i-search): keys two # input `keys`
127.0.0.1:6379> # press CTRL+G
```
* TAB : use the current search result and exit search mode
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(reverse-i-search): # press CTRL+R
(reverse-i-search): keys two # input `keys`
127.0.0.1:6379> keys two # press TAB
```
* ENTER : use the current search result and execute the command
```
127.0.0.1:6379> keys one
127.0.0.1:6379> keys two
(reverse-i-search): # press CTRL+R
(reverse-i-search): keys two # input `keys`
127.0.0.1:6379> keys two # press ENTER
(empty array)
127.0.0.1:6379>
```
* any arrow key will disable reverse search
your result will have the search match bolded, you can press enter to
execute the full result
note: I have _only added this for multi-line mode_, as it seems to be
forced that way when `repl` is called
Closes: https://github.com/redis/redis/issues/8277
---------
Co-authored-by: Clayton Northey <clayton@knowbl.com>
Co-authored-by: Viktor Söderqvist <viktor.soderqvist@est.tech>
Co-authored-by: debing.sun <debing.sun@redis.com>
Co-authored-by: Bjorn Svensson <bjorn.a.svensson@est.tech>
Co-authored-by: Viktor Söderqvist <viktor@zuiderkwast.se>
