Direct Bazel builds from m.

This CL adds support to bp2build/Soong to dump a BUILD file under
out/soong/soong_injection/targets containing alias targets to their real
targets for every converted Soong module, regardless of whether they are
handcrafted or generated.

Test: TH
Change-Id: Ic1816fda5d019c395301618134fac68b3057d752

bazel/properties.go

@@ -19,6 +19,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"sort"
+	"strings"
 )
 
 // BazelTargetModuleProperties contain properties and metadata used for
@@ -33,6 +34,10 @@ type BazelTargetModuleProperties struct {
 
 const BazelTargetModuleNamePrefix = "__bp2build__"
 
+func StripNamePrefix(moduleName string) string {
+	return strings.TrimPrefix(moduleName, BazelTargetModuleNamePrefix)
+}
+
 var productVariableSubstitutionPattern = regexp.MustCompile("%(d|s)")
 
 // Label is used to represent a Bazel compatible Label. Also stores the original