added support for image orientation filter (#4404)

* added support for image orientation filter
* Add orientation filtering to scenes
---------
Co-authored-by: WithoutPants <53250216+WithoutPants@users.noreply.github.com>

pkg/models/orientation.go

@@ -0,0 +1,17 @@
+package models
+
+type OrientationEnum string
+
+const (
+	OrientationLandscape OrientationEnum = "LANDSCAPE"
+	OrientationPortrait  OrientationEnum = "PORTRAIT"
+	OrientationSquare    OrientationEnum = "SQUARE"
+)
+
+func (e OrientationEnum) IsValid() bool {
+	switch e {
+	case OrientationLandscape, OrientationPortrait, OrientationSquare:
+		return true
+	}
+	return false
+}