Imports of package coreregexp

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
github.com/purpleidea/mgmt/lang/funcs/simple
github.com/purpleidea/mgmt/lang/typesPackage types provides a framework for our mcl language values and types.
github.com/purpleidea/mgmt/util/errwrapPackage errwrap contains some error helpers.
regexpPackage regexp implements regular expression search.