make ui configurations selectable (closes #2406609) * introduce a new 'uicfg' registry (storing instances) * use the relevant new APIs from lgc.registry to manage the new registrable uicfg objects * cw event manager useage is gone; instead thze standard registry reloading mechanism is used * ensure i18n commands still work (devctl) * introduce dynamic uicfgs use whenever possible (various views), even though sometimes the classic 'static' usage remains

[MESSAGES CONTROL]
disable-msg = C0301

[VARIABLES]
# Enable / disable this checker
enable-variables = yes
additional-builtins = _, display_name

[BASIC]
required-attributes=
attr-rgx = (w|[a-z_][a-z0-9_]{2,30})
variable-rgx = (w|[a-z_][a-z0-9_]{2,30})$
argument-rgx = (w|[a-z_][a-z0-9_]{2,30})$

[TYPECHECK]
generated-members=debug,info,notice,warning,error,critical,exception