Move derived `auth` algebra stuff in `lib` folder.

_CoqProject

@@ -17,8 +17,6 @@ theories/algebra/big_op.v
 theories/algebra/cmra_big_op.v
 theories/algebra/sts.v
 theories/algebra/auth.v
-theories/algebra/frac_auth.v
-theories/algebra/excl_auth.v
 theories/algebra/gmap.v
 theories/algebra/ofe.v
 theories/algebra/base.v
@@ -40,7 +38,9 @@ theories/algebra/deprecated.v
 theories/algebra/proofmode_classes.v
 theories/algebra/ufrac.v
 theories/algebra/namespace_map.v
-theories/algebra/ufrac_auth.v
+theories/algebra/lib/excl_auth.v
+theories/algebra/lib/frac_auth.v
+theories/algebra/lib/ufrac_auth.v
 theories/bi/notation.v
 theories/bi/interface.v
 theories/bi/derived_connectives.v

theories/base_logic/lib/boxes.v

 From iris.proofmode Require Import tactics.
-From iris.algebra Require Import excl_auth gmap agree.
+From iris.algebra Require Import lib.excl_auth gmap agree.
 From iris.base_logic.lib Require Export invariants.
 Set Default Proof Using "Type".
 Import uPred.

theories/heap_lang/lib/counter.v

 From iris.proofmode Require Import tactics.
-From iris.algebra Require Import frac_auth auth.
+From iris.algebra Require Import lib.frac_auth auth.
 From iris.base_logic.lib Require Export invariants.
 From iris.program_logic Require Export weakestpre.
 From iris.heap_lang Require Export lang.

theories/program_logic/ownp.v

 From iris.proofmode Require Import tactics classes.
-From iris.algebra Require Import excl_auth.
+From iris.algebra Require Import lib.excl_auth.
 From iris.program_logic Require Export weakestpre.
 From iris.program_logic Require Import lifting adequacy.
 From iris.program_logic Require ectx_language.