Additional vw_infiltration_installation and vw_wwtp_structure

[sjib]

Description : Currently the views related to infiltration_installation and wwtp_structure are missing. So we cannot import data there

Related issues :

• [x] https://github.com/QGEP/QGEP/issues/768

Useful links :

Related pull requests :

• [x] https://github.com/QGEP/datamodel/pull/189