feat: add tiny dream stable diffusion support (#1283)

Signed-off-by: Gianluca Boiano <morf3089@gmail.com>

pkg/tinydream/generate_unsupported.go

@@ -0,0 +1,10 @@
+//go:build !tinydream
+// +build !tinydream
+
+package tinydream
+
+import "fmt"
+
+func GenerateImage(height, width, step, seed int, positive_prompt, negative_prompt, dst, asset_dir string) error {
+	return fmt.Errorf("This version of LocalAI was built without the tinytts tag")
+}