Bump junit from 4.12 to 4.13.1

Merge pull request #11 from indigo-dc/dependabot/maven/com.fasterxml.jackson.core-jackson-databind-2.10.0.pr1

Bump jackson-databind from 2.9.10.4 to 2.10.0.pr1

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.12...r4.13.1

)

Signed-off-by: dependabot[bot] <support@github.com>

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.10.4 to 2.10.0.pr1.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits

)

Signed-off-by: dependabot[bot] <support@github.com>

Updated QCG models

Merge pull request #7 from indigo-dc/dependabot/maven/com.fasterxml.jackson.core-jackson-databind-2.9.10.1

Bump jackson-databind from 2.9.10 to 2.9.10.1

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.10 to 2.9.10.1.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits

)

Signed-off-by: dependabot[bot] <support@github.com>

changed readme

updated jackson lib reference

Untracked project files

Updated comments

Use explicit maven dependencies

Make QcgException extend RuntimeException

Build is failing right now since it is resolving the dependency with version 3.0.0-SNAPSHOT, and that yields the error:
```
[ERROR] /var/lib/jenkins/workspace/INDIGO/qcg-client-publish/src/main/java/it/infn/ba/deep/qcg/client/utils/QcgEncoder.java:[43,13] error: cannot find symbol
[ERROR]   symbol:   method setSerializationInclusion(Include)
  location: variable mapper of type ObjectMapper
/var/lib/jenkins/workspace/INDIGO/qcg-client-publish/src/main/java/it/infn/ba/deep/qcg/client/utils/ModelUtils.java:[110,11] error: cannot find symbol
[ERROR]   symbol:   method setSerializationInclusion(Include)
  location: variable mapper of type ObjectMapper
/var/lib/jenkins/workspace/INDIGO/qcg-client-publish/src/main/java/it/infn/ba/deep/qcg/client/utils/QcgDecoder.java:[47,11] error: cannot find symbol
```

Checked Exceptions are Evil 
https://phauer.com/2015/checked-exceptions-are-evil/

Added Resource entities