Init (#17)

* add basic gitignore

* init go mod

* add semrel and badges

* add error pkg

* added config pkg

* added main cmd structure

* return error on file not found and added log ids and messages

* add todo for error_creator.go

internal/errors/unimplemented.go

@@ -0,0 +1,34 @@
+package errors
+
+import (
+	"fmt"
+)
+
+var (
+	_ Unimplemented = (*UnimplementedError)(nil)
+	_ Error         = (*UnimplementedError)(nil)
+)
+
+type Unimplemented interface {
+	error
+	IsUnimplemented()
+}
+
+type UnimplementedError struct {
+	*CaosError
+}
+
+func ThrowUnimplemented(parent error, id, message string) error {
+	return &UnimplementedError{createCaosError(parent, id, message)}
+}
+
+func ThrowUnimplementedf(parent error, id, format string, a ...interface{}) error {
+	return ThrowUnimplemented(parent, id, fmt.Sprintf(format, a...))
+}
+
+func (err *UnimplementedError) IsUnimplemented() {}
+
+func IsUnimplemented(err error) bool {
+	_, ok := err.(Unimplemented)
+	return ok
+}