Cli: Added minimal command autocomplete

[jankoerner]

Implementation of a command autocomplete implemented with linenoise-ng as mentioned in issue #4676.
The autocompletion only starts if at least one character is entered, as far as I understand this is how linenoise works.
The readline dependecy was removed.
In addition to this I removed some warnings which I received when I ran the automatic cli tests.

Fixes #4676

Screenshots

Testing strategy

I tested the autocompletion manually in the terminal.
Currently I try some automatic testing but unfortunately I am not able to get the autocomplete within the tests I wrote.
I think this is due to linenoise because it controls stdin and stdout.

Type of change

• ✅ New feature (change that adds functionality)
• ✅ Documentation (non-code change)

[codecov-commenter]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (a472ef8) 64.69% compared to head (c942388) 64.41%.

❗ Current head c942388 differs from pull request most recent head a9b717a. Consider uploading reports for the commit a9b717a to get more accurate results

Files	Patch %	Lines
src/cli/Command.cpp	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #8918      +/-   ##
===========================================
- Coverage    64.69%   64.41%   -0.28%     
===========================================
  Files          339      341       +2     
  Lines        41462    44259    +2797     
===========================================
+ Hits         26822    28506    +1684     
- Misses       14640    15753    +1113     

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[droidmonkey]

Outstanding!