Restructure project directories

Follow the standard of all go projects

internal/config/structures.go

@@ -0,0 +1,26 @@
+package config
+
+type Configuration struct {
+	Workspace    string
+	Repositories []RepositoryConfig
+}
+
+type RepositoryConfig struct {
+	Name string `yaml:",omitempty"`
+	Src  string
+	Dest string   `yaml:",omitempty"`
+	Tags []string `yaml:",omitempty"`
+	Skip bool
+}
+
+type CliArguments struct {
+	ConfigurationFile string
+	Sync              bool
+	Status            bool
+	Version           bool
+	Color             bool
+	LimitToName       string
+	LimitToTags       []string
+	Routines          int
+	IgnoreSkipped     bool
+}