Add UHID mouse support

Use the following command:

    scrcpy --mouse=uhid

PR #4473 <https://github.com/Genymobile/scrcpy/pull/4473>

app/src/options.h

@@ -151,6 +151,7 @@ enum sc_mouse_input_mode {
     SC_MOUSE_INPUT_MODE_AUTO,
     SC_MOUSE_INPUT_MODE_DISABLED,
     SC_MOUSE_INPUT_MODE_SDK,
+    SC_MOUSE_INPUT_MODE_UHID,
     SC_MOUSE_INPUT_MODE_AOA,
 };