feat(refacto): move everything in internal package

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

doc/docs/packages/internal/generator/labels.md

@@ -0,0 +1,110 @@
+<!-- Code generated by gomarkdoc. DO NOT EDIT -->
+
+# labels
+
+```go
+import "github.com/katenary/katenary/internal/generator/labels"
+```
+
+Package labels provides functionality to parse and manipulate labels.
+
+## Constants
+
+<a name="KatenaryLabelPrefix"></a>
+
+```go
+const KatenaryLabelPrefix = "katenary.v3"
+```
+
+<a name="GetLabelHelp"></a>
+## func [GetLabelHelp](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L88>)
+
+```go
+func GetLabelHelp(asMarkdown bool) string
+```
+
+GetLabelHelp return the help for the labels.
+
+<a name="GetLabelHelpFor"></a>
+## func [GetLabelHelpFor](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L97>)
+
+```go
+func GetLabelHelpFor(labelname string, asMarkdown bool) string
+```
+
+GetLabelHelpFor returns the help for a specific label.
+
+<a name="GetLabelNames"></a>
+## func [GetLabelNames](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L72>)
+
+```go
+func GetLabelNames() []string
+```
+
+GetLabelNames returns a sorted list of all katenary label names.
+
+<a name="Prefix"></a>
+## func [Prefix](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L235>)
+
+```go
+func Prefix() string
+```
+
+
+
+<a name="Help"></a>
+## type [Help](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L64-L69>)
+
+Help is the documentation of a label.
+
+```go
+type Help struct {
+    Short   string `yaml:"short"`
+    Long    string `yaml:"long"`
+    Example string `yaml:"example"`
+    Type    string `yaml:"type"`
+}
+```
+
+<a name="Label"></a>
+## type [Label](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L57>)
+
+Label is a katenary label to find in compose files.
+
+```go
+type Label = string
+```
+
+<a name="LabelMainApp"></a>Known labels.
+
+```go
+const (
+    LabelMainApp        Label = KatenaryLabelPrefix + "/main-app"
+    LabelValues         Label = KatenaryLabelPrefix + "/values"
+    LabelSecrets        Label = KatenaryLabelPrefix + "/secrets"
+    LabelPorts          Label = KatenaryLabelPrefix + "/ports"
+    LabelIngress        Label = KatenaryLabelPrefix + "/ingress"
+    LabelMapEnv         Label = KatenaryLabelPrefix + "/map-env"
+    LabelHealthCheck    Label = KatenaryLabelPrefix + "/health-check"
+    LabelSamePod        Label = KatenaryLabelPrefix + "/same-pod"
+    LabelDescription    Label = KatenaryLabelPrefix + "/description"
+    LabelIgnore         Label = KatenaryLabelPrefix + "/ignore"
+    LabelDependencies   Label = KatenaryLabelPrefix + "/dependencies"
+    LabelConfigMapFiles Label = KatenaryLabelPrefix + "/configmap-files"
+    LabelCronJob        Label = KatenaryLabelPrefix + "/cronjob"
+    LabelEnvFrom        Label = KatenaryLabelPrefix + "/env-from"
+    LabelExchangeVolume Label = KatenaryLabelPrefix + "/exchange-volumes"
+    LabelValuesFrom     Label = KatenaryLabelPrefix + "/values-from"
+)
+```
+
+<a name="LabelName"></a>
+### func [LabelName](<https://github.com/katenary/katenary/blob/master/internal/generator/labels/katenaryLabels.go#L59>)
+
+```go
+func LabelName(name string) Label
+```
+
+
+
+Generated by [gomarkdoc](<https://github.com/princjef/gomarkdoc>)