Use compose-go + improvements (#9)

Use compose-go https://github.com/compose-spec/compose-go  to make Katenary parsing compose file the official way.
Add labels:
- `volume-from` (with `same-pod`) to avoid volume repetition
- `ignore` to ignore a service
- `mapenv` (replaces the `env-to-service`) to map environment to helm variable (as a template string)
- `secret-vars` declares variables as secret values

More:
- Now, environment (as secret vars) are set in values.yaml
- Ingress has got annotations in values.yaml
- Probes (liveness probe) are improved
- fixed code to optimize
- many others fixes about path, bad volume check, refactorisation, tests...

Makefile

@@ -6,7 +6,7 @@ PREFIX=~/.local
 
 GO=container
 OUT=katenary
-BLD_CMD=go build -ldflags="-X 'main.Version=$(VERSION)'" -o $(OUT) ./cmd/*.go
+BLD_CMD=go build -ldflags="-X 'main.Version=$(VERSION)'" -o $(OUT) ./cmd/katenary/*.go
 GOOS=linux
 GOARCH=amd64
 
@@ -106,10 +106,10 @@ ifeq ($(GO),local)
 	$(BLD_CMD)
 else ifeq ($(CTN),podman)
 	@podman run -e CGO_ENABLED=0 -e GOOS=$(GOOS) -e GOARCH=$(GOARCH) \
-		--rm -v $(PWD):/go/src/katenary:z -w /go/src/katenary --userns keep-id -it docker.io/golang $(BLD_CMD)
+		--rm -v $(PWD):/go/src/katenary:z -w /go/src/katenary --userns keep-id -it $(BUILD_IMAGE) $(BLD_CMD)
 else
 	@docker run -e CGO_ENABLED=0 -e GOOS=$(GOOS) -e GOARCH=$(GOARCH) \
-		--rm -v $(PWD):/go/src/katenary:z -w /go/src/katenary --user $(shell id -u):$(shell id -g) -e HOME=/tmp -it docker.io/golang $(BLD_CMD)
+		--rm -v $(PWD):/go/src/katenary:z -w /go/src/katenary --user $(shell id -u):$(shell id -g) -e HOME=/tmp -it $(BUILD_IMAGE) $(BLD_CMD)
 endif
 	echo "=> Stripping if possible"
 	strip $(OUT) 2>/dev/null || echo "=> No strip available"