Update to bleve v2 and to use the scorch index (#18266)

Automatic Merge

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/avct/uasurfer v0.0.0-20191028135549-26b5daa857f1
 	github.com/aws/aws-sdk-go v1.38.67
 	github.com/blang/semver v3.5.1+incompatible
-	github.com/blevesearch/bleve v1.0.14
+	github.com/blevesearch/bleve/v2 v2.1.0
 	github.com/cespare/xxhash/v2 v2.1.1
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/dgryski/dgoogauth v0.0.0-20190221195224-5a805980a5f3
@@ -114,7 +114,6 @@ require (
 	github.com/ulikunitz/xz v0.5.10 // indirect
 	github.com/vmihailenco/msgpack/v5 v5.3.4
 	github.com/wiggin77/merror v1.0.3
-	github.com/willf/bitset v1.1.11 // indirect
 	github.com/xtgo/uuid v0.0.0-20140804021211-a0b114877d4c
 	github.com/yuin/goldmark v1.3.8
 	go.etcd.io/bbolt v1.3.6 // indirect