Merge PR #37297 into master

Merge PR #37297 into master

* refs/pull/37297/head:
	qa: add new client tests
	test: add client tests
	client: wire up alternate_name
	mds: fix alternate_name durability
	mds: add alternate_name feature support for dentries
	mds: add static encode/decode helpers for remote in CDentry
	mds: add "fscrypt" flag support for inode_t
	mds: add new CDentry tags support
	include: cleanup filepath cons
	mds: add comment on linkage durability
	client: constify some RWRef methods
	common: add strescape helper

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>