checking in - all basic funcs in place; add a few more then v1 merge

secretvalue_funcs.go

@@ -0,0 +1,13 @@
+package gosecret
+
+/*
+	MarshalJSON converts a SecretValue to a JSON representation.
+	For compat reasons, the MarshalText is left "unmolested" (i.e. renders to a Base64 value).
+	I don't bother with an UnmarshalJSON because it makes exactly 0 sense to unmarshal due to runtime and unexported fields in Secret.
+*/
+func (s *SecretValue) MarshalJSON() (b []byte, err error) {
+
+	b = []byte(string(*s))
+
+	return
+}