Add secrets search capability (#367)

* add initial secrets cataloger

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update ETUI elements with new catalogers (file metadata, digests, and secrets)

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update secrets cataloger to read full contents into memory for searching

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* quick prototype of parallelization secret regex search

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* quick prototype with single aggregated regex

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* quick prototype for secret search line-by-line

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* quick prototype hybrid secrets search

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* add secrets cataloger with line strategy

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* adjust verbiage towards SearchResults instead of Secrets + add tests

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update json schema with secrets cataloger results

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* address PR comments

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* update readme with secrets config options

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

* ensure file catalogers call AllLocations once

Signed-off-by: Alex Goodman <alex.goodman@anchore.com>

internal/constants.go

@@ -6,5 +6,5 @@ const (
 
 	// JSONSchemaVersion is the current schema version output by the JSON presenter
 	// This is roughly following the "SchemaVer" guidelines for versioning the JSON schema. Please see schema/json/README.md for details on how to increment.
-	JSONSchemaVersion = "1.0.4"
+	JSONSchemaVersion = "1.0.5"
 )