Add investigationId form element to catalog GUI. Refs #8757.
Add setters/getters to catalogSearchParam for invesId. Refs #8757.
Add new property to catalogSearch algorithm. Refs #8757.
Pass the input from the interface to the algorithm. Refs #8757.

- Also hide related error message icon.
Update icat4 search query. Refs #8757.
Forgot to add tooltip to form element. Refs #8757.
Merge branch 'feature/8757_icat_add_invs_num_to_search' into develop. Refs #8757.

Conflicts:

- Code/Mantid/MantidQt/MantidWidgets/inc/MantidQtMantidWidgets/CatalogSearch.ui