Relocating all schema files from /3.5 to /core/3.5 on schemas.deegree.org

[tfr42]

Current developer builds of deegree 3.5 use https://schemas.deegree.org/3.5/ as a base URL for all schema files.
We have decided that for the final version of deegree 3.5 the final destination of all schema files will be https://schemas.deegree.org/core/3.5/ (introducing a new folder core between root and version).
All files currently located under the folder https://schemas.deegree.org/3.5/ will move to https://schemas.deegree.org/core/3.5/. This folder will include all deegree core schema files currently existing.

[tfr42]

https://schemas.deegree.org/3.5.0-SNAPSHOT/ and https://schemas.deegree.org/3.5/ are going to be removed.
Use https://schemas.deegree.org/core/3.5 instead.

[tfr42]

The relocation of the schema files for version 3.5 and higher is completed.