Add new low utils: depth() and nstr()
Update checkVar() 'depth checking' feature using nstr()
Update funs impacted by ignore.depth.error changes
Update 'rescue' load_SESsettings with convertion feature
Revert "Update funs impacted by ignore.depth.error changes"

This reverts commit 4030d4730385eb3240f571178902061e67edc47e.
Correct mibor bugs