refactor(ChartDataCommand): into two separate commands

[ofekisr]

Background

When we have worked on #16991 we wanted to test the new functionalities in concrete and accurate unittest.
All chartData flows and its components are too couple to superset so it is impossible to create unittests.
The flows are not testable and so many components do not meet the very important principle SRP and the code became so dirty

So I've started to refactor it (#17344 ) but many changes were added and it was hard to review so I decided to split those changes into small PRs so will be easier to follow

This is the fifth PR in a sequence of PRs to meet these
The next PR is #17461

PR description

1. Moves the commands module to be under charts.data package
2. Retrieving data and creating retrieve data job are two different responsibilities, so they should be in separate commands so the PR split it.

Note - The pr consists of the #17407 commit until it will be merged then I'll recreate the branch from master

Test plans

There are no logic changes so new tests are not required

Previous PRs

1. refactor(ChartData): move ChartDataResult enums to common #17399
2. refactor(ChartData): move chart_data_apis from ChartRestApi ChartDataRestApi #17400
3. refactor(ChartDataCommand): separate loading query_context form cache into different module #17405
4. refactor(TestChartApi): move chart data api tests into TestChartDataApi #17407

[amitmiran137]

Separation looks clean !

[codecov]

Codecov Report

Merging #17425 (25da471) into master (d8851c9) will decrease coverage by 0.00%.
The diff coverage is 94.11%.

@@            Coverage Diff             @@
##           master   #17425      +/-   ##
==========================================
- Coverage   76.97%   76.97%   -0.01%     
==========================================
  Files        1041     1041              
  Lines       56069    56068       -1     
  Branches     7742     7742              
==========================================
- Hits        43157    43156       -1     
  Misses      12654    12654              
  Partials      258      258              

Flag	Coverage Δ
hive	81.52% <94.11%> (-0.01%)	⬇️
mysql	81.95% <94.11%> (-0.01%)	⬇️
postgres	81.95% <94.11%> (-0.01%)	⬇️
python	82.31% <94.11%> (-0.01%)	⬇️
sqlite	81.63% <94.11%> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
superset/charts/data/api.py	88.57% <85.71%> (+0.08%)	⬆️
superset/charts/data/commands.py	97.87% <100.00%> (ø)
superset/tasks/async_queries.py	96.96% <100.00%> (ø)

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