Adds heading target logic condition

- allows for a slider/global-var to set the desired heading
- addresses issue #6642

src/main/programming/logic_condition.c

@@ -317,6 +317,12 @@ static int logicConditionCompute(
             return true;
         break;
 
+        case LOGIC_CONDITION_SET_HEADING_TARGET:
+            temporaryValue = CENTIDEGREES_TO_DEGREES(wrap_36000(DEGREES_TO_CENTIDEGREES(operandA)));
+            updateHeadingHoldTarget(temporaryValue);
+            return temporaryValue;
+        break;
+
         default:
             return false;
             break;