add mapping and composite feature

[truckydev]

This code add some mapping

Try to create composite mapping

Don't lost unknow mapping and make it as 'other' type

[coveralls]

Coverage decreased (-1.5%) to 43.341% when pulling e232392 on truckydev:master into a1c62d6 on MISP:master.

[codecov-io]

Codecov Report

Merging #82 into master will decrease coverage by 1.47%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #82      +/-   ##
==========================================
- Coverage   44.81%   43.34%   -1.48%     
==========================================
  Files           7        7              
  Lines        1678     1742      +64     
==========================================
+ Hits          752      755       +3     
- Misses        926      987      +61

Impacted Files	Coverage Δ
pymisp/tools/openioc.py	0% <0%> (ø)	⬆️
pymisp/api.py	40.17% <0%> (+0.29%)	⬆️

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