Extract rt types (#8)

* Extract runtime types

Co-authored-by: ZenGround0 <[email protected]>

cbor/cbor.go

@@ -0,0 +1,18 @@
+package cbor
+
+import "io"
+
+// These interfaces are intended to match those from whyrusleeping/cbor-gen, such that code generated from that
+// system is automatically usable here (but not mandatory).
+type Marshaler interface {
+	MarshalCBOR(w io.Writer) error
+}
+
+type Unmarshaler interface {
+	UnmarshalCBOR(r io.Reader) error
+}
+
+type Er interface {
+	Marshaler
+	Unmarshaler
+}

rt/log.go

@@ -0,0 +1,18 @@
+package log
+
+// Specifies importance of message, LogLevel numbering is consistent with the uber-go/zap package.
+type LogLevel int
+
+const (
+	// DebugLevel logs are typically voluminous, and are usually disabled in
+	// production.
+	DEBUG LogLevel = iota - 1
+	// InfoLevel is the default logging priority.
+	INFO
+	// WarnLevel logs are more important than Info, but don't need individual
+	// human review.
+	WARN
+	// ErrorLevel logs are high-priority. If an application is running smoothly,
+	// it shouldn't generate any error-level logs.
+	ERROR
+)