#6288: Cache get, add, remove list for ContainerStructures


Former-commit-id: f967edff01827fcc9d3bec694175a447f103e51a
Merge pull request #6299 from dotCMS/issue-6288-ContainerStructures-cache

#6288: Cache get, add, remove list for ContainerStructures

Former-commit-id: 77ce2929c5dde786b92c883cd04f90015bd2e7ff
#6288: add cache to getStructureCode()


Former-commit-id: 1616041cc63ccc945e8a43685456f2649ddd9449
Merge pull request #6303 from dotCMS/issue-6288-ContainerStructures-cache

#6288: add cache to getStructureCode()

Former-commit-id: c74fb662652669f5ae4ff750b02f9f44ec6863a6
#6223


Former-commit-id: a7453c4c9f80590395251ac7f64229c295689d6a
#6283: Handle the case when the index is missing


Former-commit-id: b5ab1fb0acb74f9bfa57805a0312d04c49fc038a
#6290


Former-commit-id: 741fd953a795486e6b8159b564e35dbb7c25fe2c
Merge pull request #6305 from dotCMS/issue-6283-Hostaliascache

#6283: Handle the case when the index is missing

Former-commit-id: a9ff1e006a913a0ab9aae2873766c1435fa5bdf5
Merge pull request #6306 from dotCMS/issue-6290-hide-unused-buttons-in-dashboard-proprties-tab

#6290

Former-commit-id: 6427230559efc18928567ee3bab56a19e78e8c27
Merge branch 'master' #6201 of https://github.com/dotCMS/core into issue-6201-htmlpage-as-content