date: Remove date lib

DateTimeController can provide everything we need.

src/components/ble/weather/WeatherService.cpp

@@ -15,6 +15,7 @@
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
+#include <algorithm>
 #include <qcbor/qcbor_spiffy_decode.h>
 #include "WeatherService.h"
 #include "libs/QCBOR/inc/qcbor/qcbor.h"

src/components/datetime/DateTimeController.h

@@ -67,6 +67,10 @@ namespace Pinetime {
         return static_cast<Days>(daysSinceSunday);
       }
 
+      uint8_t DayOfYear() const {
+        return localTime.tm_yday + 1;
+      }
+
       uint8_t Hours() const {
         return localTime.tm_hour;
       }