Added 'Device.extendedProperties' to OpenAPI definition file

[Coduz]

This PR adds mapping for Device property ExtendedProperties added in #3273

Related Issue
Missing part of PR #3273

Description of the solution adopted
Just added mappings and examples

Screenshots
None

Any side note on the changes made
None

[codecov]

Codecov Report

Merging #3307 (76824c5) into develop (64c17fd) will decrease coverage by 12.20%.
The diff coverage is n/a.

❗ Current head 76824c5 differs from pull request most recent head 37cd6f0. Consider uploading reports for the commit 37cd6f0 to get more accurate results

@@              Coverage Diff               @@
##             develop    #3307       +/-   ##
==============================================
- Coverage      54.14%   41.94%   -12.21%     
+ Complexity       786      744       -42     
==============================================
  Files           1478     1478               
  Lines          30235    30235               
  Branches        2523     2523               
==============================================
- Hits           16372    12681     -3691     
- Misses         12970    16918     +3948     
+ Partials         893      636      -257     

Impacted Files	Coverage Δ	Complexity Δ
...pse/kapua/kura/simulator/GatewayConfiguration.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...lipse/kapua/service/tag/internal/TagQueryImpl.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...a/kura/simulator/birth/BirthCertificateModule.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
.../job/engine/exception/JobMissingStepException.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
.../kapua/service/tag/internal/TagListResultImpl.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...job/engine/exception/KapuaJobEngineErrorCodes.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...pua/service/account/internal/AccountQueryImpl.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...a/service/account/internal/AccountCreatorImpl.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...ua/service/datastore/internal/schema/Metadata.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
...ervice/account/internal/AccountListResultImpl.java	0.00% <0.00%> (-100.00%)	0.00% <0.00%> (ø%)
... and 206 more