-fix some memory leaks in unittests

-change name in dub.json ecs->bubel_ecs
-add dependeny in meson.build

tests/tests.d

@@ -1014,6 +1014,7 @@ else:
 	writeEntityComponents(gEM.getEntity(entity));
 	//import std.stdio;
 	////writeln((cast(uint*)tmpl.info.first_block)[0..48]);
+	gEM.freeTemplate(tmpl_empty);
 	gEM.freeTemplate(tmpl);
 	gEM.freeTemplate(tmpl2);
 	gEM.freeTemplate(copy_tempalte);