Implement plugin manager

[Lycopersicum]

No description provided.

[codecov]

Codecov Report

Merging #85 into master will decrease coverage by 2.87%.
The diff coverage is 66.01%.

@@            Coverage Diff             @@
##           master      #85      +/-   ##
==========================================
- Coverage   82.73%   79.85%   -2.88%     
==========================================
  Files          14       27      +13     
  Lines        1402     1708     +306     
==========================================
+ Hits         1160     1364     +204     
- Misses        242      344     +102

Flag	Coverage Δ
#plugins	27.81% <66.01%> (?)
#regular	51.52% <16.66%> (-7.61%)	⬇️
#secure	37.23% <16.66%> (-4.49%)	⬇️

Impacted Files	Coverage Δ
examples/rest-server/settings.c	84.29% <100%> (+4.56%)	⬆️
examples/rest-server/restserver.c	78.81% <100%> (+2.31%)	⬆️
lwm2m-framework/include/lwm2m_framework.hpp	100% <100%> (ø)
http-framework/include/http_framework.hpp	100% <100%> (ø)
http-framework/include/callback_handler.hpp	100% <100%> (ø)
http-framework/include/response.hpp	100% <100%> (ø)
http-framework/include/request.hpp	100% <100%> (ø)
plugin-manager/include/plugin_manager_core.hpp	100% <100%> (ø)
plugin-manager/include/plugin_manager.hpp	100% <100%> (ø)
http-framework/src/ulfius_http_framework.cpp	38.29% <38.29%> (ø)
... and 19 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f532e21...97a9dd0. Read the comment docs.