[res] Add test recipe for sign operation (#16405)

This creates a test TFLite recipe for the Sign operation.

Signed-off-by: Seungho Henry Park <shs.park@samsung.com>

Author: shs-park

res/TensorFlowLiteRecipes/Sign_000/test.recipe

@@ -0,0 +1,17 @@
+operand {
+  name: "ifm"
+  type: FLOAT32
+  shape { dim: 1 dim: 3 dim: 3 dim: 2 }
+}
+operand {
+  name: "ofm"
+  type: FLOAT32
+  shape { dim: 1 dim: 3 dim: 3 dim: 2 }
+}
+operation {
+  type: "Sign"
+  input: "ifm"
+  output: "ofm"
+}
+input: "ifm"
+output: "ofm"