Feat/posts and attachments

[svituz]

Negotiator pull request:

Description:

PR that implements attachments for negotiations and refactors posts.
Adds also authorization for attachments and posts

Checklist:

Make sure you tick all the boxes bellow if they are true or do not apply:

• [x ] I have performed a self review of my code
• My code follows Google Java Code style
• I have made my code as simple as possible
• I have added unit tests and the code coverage has not decreased
• I have updated the documentation in all relevant places

[codecov]

Codecov Report

Attention: 27 lines in your changes are missing coverage. Please review.

Comparison is base (2a00865) 73.80% compared to head (494c32a) 76.28%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #116      +/-   ##
============================================
+ Coverage     73.80%   76.28%   +2.48%     
- Complexity      541      585      +44     
============================================
  Files            83       83              
  Lines          1252     1299      +47     
  Branches         70       78       +8     
============================================
+ Hits            924      991      +67     
+ Misses          267      245      -22     
- Partials         61       63       +2     

Flag	Coverage Δ
integration	76.28% <82.58%> (+2.48%)	⬆️
unit	42.64% <64.51%> (+4.38%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...tiator/api/controller/v3/AttachmentController.java	46.15% <100.00%> (ø)
...iator/api/controller/v3/NegotiationController.java	66.66% <100.00%> (ø)
...e/negotiator/api/controller/v3/PostController.java	91.66% <100.00%> (ø)
.../service/negotiator/database/model/Attachment.java	83.33% <100.00%> (+3.33%)	⬆️
...service/negotiator/database/model/AuditEntity.java	87.50% <100.00%> (+1.78%)	⬆️
.../service/negotiator/database/model/DataSource.java	38.77% <100.00%> (ø)
...service/negotiator/database/model/Negotiation.java	82.50% <ø> (-5.00%)	⬇️
...ervice/negotiator/database/model/Organization.java	75.00% <100.00%> (+5.76%)	⬆️
...c/csit/service/negotiator/database/model/Post.java	90.90% <100.00%> (+10.90%)	⬆️
...it/service/negotiator/database/model/PostType.java	100.00% <ø> (ø)
... and 23 more

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