Add FT.alias functionality

[maguec]

add command for creation, updating and removal of aliases

The test case takes into account version 2.0 or higher and previous versions do the way that documents are nomally added

[codecov]

Codecov Report

Merging #99 into master will increase coverage by 0.33%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #99      +/-   ##
==========================================
+ Coverage   91.42%   91.76%   +0.33%     
==========================================
  Files          12       12              
  Lines        1586     1651      +65     
==========================================
+ Hits         1450     1515      +65     
  Misses        136      136              

Impacted Files	Coverage Δ
redisearch/client.py	89.09% <100.00%> (+0.41%)	⬆️
test/test.py	98.97% <100.00%> (+0.10%)	⬆️

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[ashtul]

@maguec
Looks good. Thank you for your contribution.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication