cmd/rofl/init: Detect rofl-compose.yaml, if exists as well

In some projectes, we needed to separate between the generic
compose.yaml files and ROFL-tailored compose files. In this case we named it
rofl-compose.yaml. When running `oasis rofl init`, autodetect and use it,
if it exists.

Author: matevz

cmd/rofl/mgmt.go

@@ -675,7 +675,7 @@ var (
 
 // detectAndCreateComposeFile detects the existing compose.yaml-like file and returns its filename. Otherwise, creates an empty default compose.yaml.
 func detectOrCreateComposeFile() string {
-	for _, filename := range []string{"docker-compose.yaml", "docker-compose.yml", "compose.yml"} {
+	for _, filename := range []string{"rofl-compose.yaml", "rofl-compose.yml", "docker-compose.yaml", "docker-compose.yml", "compose.yml"} {
 		if _, err := os.Stat(filename); err == nil {
 			return filename
 		}