LPS-33741 Make Media Gallery portlet instanceable
LPS-33741 Upgrade process
LPS-33741 Source formatting
Revert "LPS-33741 Source formatting"

This reverts commit 9c620900a4b04f1a9abac82e1345dd844b4527b1.
Revert "LPS-33741 Upgrade process"

This reverts commit 0cad64c1c2137ca63ff2f4975ac604910d027b44.
LPS-33741 No logic changes, just making API more flexible.
LPS-14192 Rename class, to match the class it's testing (UpgradePortletId)
LPS-33741 Rename getPortletIdsArray to getRenamePortletIdsArray so it's more obvious what is going to be done with those portlet ids (no logic changes)
LPS-33741 Allow a developer to rename an uninstanceable portlet ID and make it instanceable
LPS-33741 Apply to Image Gallery
LPS-33903 Only divide column datalength by 4 if column is not in an old (already upgraded before) table