V0.2 vm region support

[kyu-kuanwei]

Description

1. Add region, zone, cluster layers (PM).
2. Build the snapshots of region, zone, cluster.
3. Add a basic config of region, zone, cluster structure.
4. Add unit test.
5. Add simulation results.
6. Add multiple config settings.

Linked issue(s)/Pull request(s)

• issue_number

Type of Change

• Non-breaking bug fix
• Breaking bug fix
• New feature
• Test
• Doc update
• Docker update

Related Component

• Simulation toolkit
• RL toolkit
• Distributed toolkit

Has Been Tested

• OS:
  • Windows
  • Mac OS
  • Linux
• Python version:
  • 3.6
  • 3.7
• Key information snapshot(s):

Needs Follow Up Actions

• New release package
• New docker image

Checklist

• Add/update the related comments
• Add/update the related tests
• Add/update the related documentations
• Update the dependent downstream modules usage

[codecov-io]

Codecov Report

Merging #258 (dc95da4) into v0.2 (f2c82fb) will increase coverage by 2.85%.
The diff coverage is 85.86%.

@@            Coverage Diff             @@
##             v0.2     #258      +/-   ##
==========================================
+ Coverage   64.02%   66.87%   +2.85%     
==========================================
  Files         110      115       +5     
  Lines        5634     5992     +358     
==========================================
+ Hits         3607     4007     +400     
+ Misses       2027     1985      -42     

Flag	Coverage Δ
unittests	66.87% <85.86%> (+2.85%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...mulator/scenarios/vm_scheduling/business_engine.py	49.31% <77.84%> (+31.36%)	⬆️
maro/simulator/scenarios/vm_scheduling/region.py	87.50% <87.50%> (ø)
maro/simulator/scenarios/vm_scheduling/zone.py	88.88% <88.88%> (ø)
...o/simulator/scenarios/vm_scheduling/data_center.py	90.00% <90.00%> (ø)
maro/simulator/scenarios/vm_scheduling/cluster.py	90.90% <90.90%> (ø)
maro/simulator/scenarios/vm_scheduling/rack.py	91.66% <91.66%> (ø)
...simulator/scenarios/vm_scheduling/frame_builder.py	100.00% <100.00%> (+62.50%)	⬆️
...ulator/scenarios/vm_scheduling/physical_machine.py	86.66% <100.00%> (+44.84%)	⬆️
... and 7 more

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