feat(refacto): move everything in internal package

This allows to install katenary with `go install` and to clean up the
project folder.

internal/generator/labels/labelstructs/dependencies.go

@@ -0,0 +1,21 @@
+package labelstructs
+
+import "gopkg.in/yaml.v3"
+
+// Dependency is a dependency of a chart to other charts.
+type Dependency struct {
+	Values     map[string]any `yaml:"-" json:"values,omitempty"`
+	Name       string         `yaml:"name" json:"name"`
+	Version    string         `yaml:"version" json:"version"`
+	Repository string         `yaml:"repository" json:"repository"`
+	Alias      string         `yaml:"alias,omitempty" json:"alias,omitempty"`
+}
+
+// DependenciesFrom returns a slice of dependencies from the given string.
+func DependenciesFrom(data string) ([]Dependency, error) {
+	var mapping []Dependency
+	if err := yaml.Unmarshal([]byte(data), &mapping); err != nil {
+		return nil, err
+	}
+	return mapping, nil
+}