Add Jacoco support

Add support for instrumenting jars with jacoco.  Unlike in Make,
Jacoco in Soong is done entirely using jars.

Instrumentation is enabled by EMMA_INSTRUMENT=true, and affects
all apps.  If EMMA_INSTRUMENT_FRAMEWORK=true then it also affects
any java libraries listed in InstrumentFrameworkModules.

Bug: 69629238
Test: m EMMA_INSTRUMENT=true EMMA_INSTRUMENT_FRAMEWORK=true SKIP_BOOT_JARS_CHECK=true WITH_DEXPREOPT=false
Change-Id: If699715b277529cd7322ffca67c23b0746e1cccd

java/app.go

@@ -54,6 +54,8 @@ type androidAppProperties struct {
 	// list of directories relative to the Blueprints file containing
 	// Android resources
 	Resource_dirs []string
+
+	Instrumentation_for *string
 }
 
 type AndroidApp struct {
@@ -119,6 +121,10 @@ func (a *AndroidApp) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	//	a.properties.Proguard.Enabled = true
 	//}
 
+	if String(a.appProperties.Instrumentation_for) == "" {
+		a.properties.Instrument = true
+	}
+
 	a.Module.compile(ctx)
 
 	aaptPackageFlags := append([]string(nil), aaptFlags...)