931: binary cataloger exclusion defaults for ownership by overlap (#1948)

Fixes #931

PR #1948 introduces a new implicit exclusion for binary packages that overlap by file ownership and have certain characteristics:

1) the relationship between packages is OwnershipByFileOverlap
2) the parent package is an "os" package - see changelog for included catalogers
3) the child is a synthetic package generated by the binary cataloger - see changelog for included catalogers
4) the package names are identical

---------

Signed-off-by: Christopher Phillips <christopher.phillips@anchore.com>

syft/pkg/cataloger/binary/cataloger.go

@@ -7,7 +7,7 @@ import (
 	"github.com/anchore/syft/syft/pkg"
 )
 
-const catalogerName = "binary-cataloger"
+const CatalogerName = "binary-cataloger"
 
 func NewCataloger() *Cataloger {
 	return &Cataloger{}
@@ -22,7 +22,7 @@ type Cataloger struct{}
 
 // Name returns a string that uniquely describes the Cataloger
 func (c Cataloger) Name() string {
-	return catalogerName
+	return CatalogerName
 }
 
 // Catalog is given an object to resolve file references and content, this function returns any discovered Packages

syft/pkg/cataloger/binary/package.go

@@ -31,7 +31,7 @@ func newPackage(classifier classifier, location file.Location, matchMetadata map
 		),
 		Type:         pkg.BinaryPkg,
 		CPEs:         cpes,
-		FoundBy:      catalogerName,
+		FoundBy:      CatalogerName,
 		MetadataType: pkg.BinaryMetadataType,
 		Metadata: pkg.BinaryMetadata{
 			Matches: []pkg.ClassifierMatch{