Add Html description field to sale order line

[felipepaloschi]

No description provided.

[codecov-io]

Codecov Report

Merging #268 into 11.0 will increase coverage by 0.08%.
The diff coverage is 70%.

@@            Coverage Diff             @@
##             11.0     #268      +/-   ##
==========================================
+ Coverage   41.76%   41.84%   +0.08%     
==========================================
  Files         105      106       +1     
  Lines        3364     3374      +10     
==========================================
+ Hits         1405     1412       +7     
- Misses       1959     1962       +3

Impacted Files	Coverage Δ
html_description_field/models/sale_order.py	70% <70%> (ø)

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[coveralls]

Coverage increased (+0.08%) to 41.849% when pulling dd22514 on 11.0-html_description_field into fcd0845 on 11.0.