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/invalid_argument.go

@@ -0,0 +1,32 @@
+package errors
+
+import "fmt"
+
+var (
+	_ InvalidArgument = (*InvalidArgumentError)(nil)
+	_ Error           = (*InvalidArgumentError)(nil)
+)
+
+type InvalidArgument interface {
+	error
+	IsInvalidArgument()
+}
+
+type InvalidArgumentError struct {
+	*CaosError
+}
+
+func ThrowInvalidArgument(parent error, id, message string) error {
+	return &InvalidArgumentError{createCaosError(parent, id, message)}
+}
+
+func ThrowInvalidArgumentf(parent error, id, format string, a ...interface{}) error {
+	return ThrowInvalidArgument(parent, id, fmt.Sprintf(format, a...))
+}
+
+func (err *InvalidArgumentError) IsInvalidArgument() {}
+
+func IsErrorInvalidArgument(err error) bool {
+	_, ok := err.(InvalidArgument)
+	return ok
+}