- Improved the overall look of the page
- Coverage generation using lcov and gcov
- Using less gitlab server page by removing interjob artifact generation

Execute TC packets

Closes #31. Actually, `execute()` functions receives as input TC packets and they call the proper services'          functions that have been implemented to handle TC packets.

See merge request acubesat/obc/ecss-services!35

Keep consistent the declaration of the execute functions in all child classes and change the scope of the execute function in the MemoryManagementService

Ecss st19 array replacement

etl::map was used to replace the array that was used to store the EventActionDefinition struct. 
Also, in this branch ErrorHandler error throws were added.

Thanks to @lightspot21 for the input.

See merge request acubesat/obc/ecss-services!33

# Conflicts:
#   inc/Services/EventActionService.hpp
#   src/Services/EventActionService.cpp
#   src/main.cpp
#   test/Services/EventActionService.cpp

Merge branch 'ECSS_ST19_array_replacement' of https://gitlab.com/acubesat/obc/ecss-services into ECSS_ST19_array_replacement

Merge branch 'ECSS_ST19_array_replacement' of https://gitlab.com/acubesat/obc/ecss-services into ECSS_ST19_array_replacement

Changed comments

Fixed names in ErrorHandler and enumeration of errors and removed explicit declaration of true or false in a CHECK

- changed variable names
- added breaks
- corrected a comment
- deleted explicit declaration of true/false in ifs
- fixed a bug in tests caused by passing the message by reference

- Changed disableEventActionDefinition
according to the needs of multimap
- Added errors in ErrorHandler

- Changed deleteEventActionDefinition
according to the multimap needs

- Added a new variable eventActionDefinitionID
- Added the size of the multimap as #define in ECSS_Definitions.hpp

Resolve "Enable MISRA checks for cppcheck"

Closes #24

See merge request acubesat/obc/ecss-services!28