Add `SkillEntry.from_directory`

[NeonDaniel]

Add local parsing option with unit tests Related bugfixes in SkillEntry to ensure property types

[codecov[bot]]

Codecov Report

Merging #81 (c473eb3) into master (ba89385) will increase coverage by 3.77%. The diff coverage is 82.95%.

:exclamation: Current head c473eb3 differs from pull request most recent head 0b92521. Consider uploading reports for the commit 0b92521 to get more accurate results

@@            Coverage Diff             @@
##           master      #81      +/-   ##
==========================================
+ Coverage   56.38%   60.15%   +3.77%     
==========================================
  Files          33       34       +1     
  Lines        2680     2718      +38     
==========================================
+ Hits         1511     1635     +124     
+ Misses       1169     1083      -86     

Impacted Files	Coverage Δ
ovos_skills_manager/local_skill/__init__.py	70.14% <70.14%> (ø)
ovos_skills_manager/appstores/local.py	65.51% <78.57%> (+37.31%)	:arrow_up:
ovos_skills_manager/skill_entry.py	67.23% <83.33%> (+0.87%)	:arrow_up:
ovos_skills_manager/github/api.py	42.47% <90.90%> (+10.48%)	:arrow_up:
ovos_skills_manager/github/__init__.py	73.41% <100.00%> (+4.71%)	:arrow_up:
ovos_skills_manager/github/raw.py	63.89% <100.00%> (+0.10%)	:arrow_up:
ovos_skills_manager/github/utils.py	94.01% <100.00%> (ø)
ovos_skills_manager/requirements.py	30.43% <100.00%> (+7.24%)	:arrow_up:
...os_skills_manager/appstores/mycroft_marketplace.py	56.89% <0.00%> (-3.45%)	:arrow_down:
... and 5 more

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[ChanceNCounter]

@ChanceNCounter any feedback?

Not on a 35-file PR I can't personally test, nope.

[JarbasAl]

you know the files are basically just test skills you can ignore right?