Job parameters default

[yann-eugone]

Description
Add a way for a developer to add default values to JobExecution parameters before getting created.

Example
In Yokai\Batch\Factory\JobExecutionFactory
Add a dependency to a class/component, using some kind of "chain mechanism"
That will allow to alter $configuration before injecting it into JobParameters

The values fetched from that default should never override those passed as argument

[yann-eugone]

Merged with #122 & #123