LPS-34691 As a developer I can define how DDM views are displayed for every portlet without hardcoded references

Hey Marcellus,

I send you the first commits of the new DDMDisplay framework. The goal of this framework is to provide detached customization options for the DDM views. I've started with some cases such as the template header titles and the excluded columns. There are still a few of them (backURL, select structure...) for which the same criteria will be followed. It'd be great to have the framework and the first cases validated and in master first.

Thanks!

@juliocamarero
@JorgeFerrer