add displ_motion feature in API

src/config/settings.h

@@ -197,6 +197,7 @@ typedef struct {
 typedef struct {
     uint8_t type;
     bool pwrSaveAtIvOffline;
+    bool motion;
     uint8_t screenSaver;
     uint8_t graph_ratio;
     uint8_t graph_size;

src/plugins/Display/Display_Mono.h

@@ -38,7 +38,7 @@ class DisplayMono {
             if (mDisplayActive) {
                 if (!dispConditions) {
                      if (mDisplayTime.isTimeout()) { // switch display off after timeout
-                          mDisplayActive = false;
+                          mCfg->motion = mDisplayActive = false;
                           mDisplay->setPowerSave(true);
                      }
                 }
@@ -47,7 +47,7 @@ class DisplayMono {
             }
             else {
                 if (dispConditions) {
-                     mDisplayActive = true;
+                     mCfg->motion = mDisplayActive = true;
                      mDisplayTime.reStartTimeMonitor(); // switch display on
                      mDisplay->setPowerSave(false);
                 }

src/web/RestApi.h

@@ -929,6 +929,7 @@ class RestApi {
 
         void getDisplay(JsonObject obj) {
             obj[F("disp_typ")]          = (uint8_t)mConfig->plugin.display.type;
+            obj[F("disp_motion")]       = (boolean)mConfig->plugin.display.motion;
             obj[F("disp_pwr")]          = (bool)mConfig->plugin.display.pwrSaveAtIvOffline;
             obj[F("disp_screensaver")]  = (uint8_t)mConfig->plugin.display.screenSaver;
             obj[F("disp_rot")]          = (uint8_t)mConfig->plugin.display.rot;