Made a GeoPos widget for lon/lat/alt entry and display (APRS...)

Cleaned up the GeoMap view, can be used as input

firmware/common/ui.cpp

@@ -20,6 +20,7 @@
  */
 
 #include "ui.hpp"
+#include "sine_table.hpp"
 
 #include <algorithm>
 
@@ -69,4 +70,8 @@ Rect& Rect::operator-=(const Point& p) {
 	return *this;
 }
 
+Point polar_to_point(float angle, uint32_t distance) {
+	return Point(sin_f32(DEG_TO_RAD(angle) + (pi / 2)) * distance, -sin_f32(DEG_TO_RAD(angle)) * distance);
+}
+
 } /* namespace ui */