Add volume support and start stop operations

[micafer]

Add volume support and start stop operations

Description

Add new functions to complete the Upload driver.

https://developers.upcloud.com/1.2/

Status

Replace this: describe the PR status. Examples:

• done, ready for review

Checklist (tick everything that applies)

• Code linting (required, can be done after the PR checks)
• Documentation
• Tests
• ICLA (required for bigger changes)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.45390% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.37%. Comparing base (30bc793) to head (0f5fb8f).

Files with missing lines	Patch %	Lines
libcloud/compute/drivers/upcloud.py	91.11%	1 Missing and 3 partials ⚠️
libcloud/common/upcloud.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##            trunk    #2147      +/-   ##
==========================================
+ Coverage   83.34%   83.37%   +0.03%     
==========================================
  Files         351      351              
  Lines       81202    81343     +141     
  Branches     8940     8951      +11     
==========================================
+ Hits        67672    67812     +140     
  Misses      10737    10737              
- Partials     2793     2794       +1     

Files with missing lines	Coverage Δ
libcloud/test/compute/test_upcloud.py	93.80% <100.00%> (+3.74%)	⬆️
libcloud/common/upcloud.py	91.43% <80.00%> (-0.57%)	⬇️
libcloud/compute/drivers/upcloud.py	95.89% <91.11%> (-0.15%)	⬇️

... and 1 file with indirect coverage changes

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