add MachineCycle

[mwennrich]

related:

• add "/v1/machine/{id}/power/cycle" metal-api#202
• expose ipmi.PowerCycleMachine metal-core#47

• tested in test-env

[codecov-commenter]

Codecov Report

Merging #68 (241ef1d) into master (cc9a356) will increase coverage by 0.03%.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##           master     #68      +/-   ##
=========================================
+ Coverage    4.46%   4.49%   +0.03%     
=========================================
  Files          14      14              
  Lines        1076    1202     +126     
=========================================
+ Hits           48      54       +6     
- Misses       1022    1141     +119     
- Partials        6       7       +1     

Impacted Files	Coverage Δ
machine.go	9.17% <0.00%> (+0.17%)	⬆️
metal.go	43.63% <0.00%> (-2.20%)	⬇️
size.go	0.00% <0.00%> (ø)
image.go	0.00% <0.00%> (ø)
health.go	0.00% <0.00%> (ø)
switch.go	0.00% <0.00%> (ø)
tenant.go	0.00% <0.00%> (ø)
network.go	0.00% <0.00%> (ø)
project.go	0.00% <0.00%> (ø)
version.go	0.00% <0.00%> (ø)
... and 5 more

---

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