feat: agentservice tests

See merge request !42

feat: Add AgentAssignmentService

See merge request !41

feat: mapper

See merge request !38

feat: dto

See merge request !33

feat: Add verify to Country Service tests, refactor imports from wildcard *

See merge request !40

feat: mission service

See merge request !39

feat: Country Service impl

See merge request !37

feat: agent service

See merge request !32

feat: add agent name and mission name

See merge request !36

feat: h2 console

See merge request !35

feat: dao negative tests

See merge request !34

feat: change layout to multi-module

See merge request !30

`mvn verifiy` ends with error that probably complains that the 2 new modules do not have main class:
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.6.4:repackage (repackage) on project secret-archive-service: Execution repackage of goal org.springframework.boot:spring-boot-maven-plugin:2.6.4:repackage failed: Unable to find main class -> [Help 1]

feat: Add Maven test CI

Closes #20

See merge request !31

feat: Add test for Country, add Cascade to Country

See merge request !29

feat: Resource tests

See merge request !28

fix: getter setter

See merge request !27

fix: add missing delete test

See merge request !26

feat: Add javadocs

See merge request !25

feat: AgentAssignment tests

Closes #19

See merge request !22