Add function that generates CPU load, third attempt

[jvilladsen]

Add a test of the timed CPU load from within the same process so that this is picked up in test coverage. Measure duration in timed CPU load and test as float. Processor load status field added to the scan result.

[codecov[bot]]

Codecov Report

Merging #8 into master will decrease coverage by 0.22%. The diff coverage is 93.1%.

@@            Coverage Diff             @@
##           master       #8      +/-   ##
==========================================
- Coverage   95.86%   95.63%   -0.23%     
==========================================
  Files          19       20       +1     
  Lines         773      779       +6     
==========================================
+ Hits          741      745       +4     
- Misses         32       34       +2

Impacted Files	Coverage Δ
lcrs_embedded/system/cpu_load.py	93.1% <93.1%> (ø)
lcrs_embedded/utils/models.py	100% <0%> (ø)	:arrow_up:

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[benjaoming]

@jvilladsen sorry about the code review fuzz - is this ready to merge? or are you continuing work in this branch?

[benjaoming]

@jvilladsen is it ready?

[jvilladsen]

It is ready as it is. I began on a (minor) change to create a process for each thread, but we can take that later.