Add new board: Arduino MKR NB 1500

Closes #37

Author: Alarm-Siren

arduino.kicad_sym

@@ -1978,6 +1978,29 @@
       (effects (font (size 1.27 1.27)) hide)
     )
   )
+  (symbol "Arduino_MKR_NB_1500_Socket" (extends "Arduino_MKR_Zero_Socket")
+    (property "Reference" "XA" (id 0) (at 2.54 0 90)
+      (effects (font (size 1.524 1.524)))
+    )
+    (property "Value" "Arduino_MKR_NB_1500_Socket" (id 1) (at -2.54 0 90)
+      (effects (font (size 1.524 1.524)))
+    )
+    (property "Footprint" "Arduino_Library:Arduino_MKR_FOX_1200_Socket" (id 2) (at 45.72 95.25 0)
+      (effects (font (size 1.524 1.524)) hide)
+    )
+    (property "Datasheet" "https://docs.arduino.cc/hardware/mkr-nb-1500" (id 3) (at 45.72 95.25 0)
+      (effects (font (size 1.524 1.524)) hide)
+    )
+    (property "ki_keywords" "Arduino MPU Socket" (id 4) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_description" "Socket for Arduino MKR NB 1500" (id 5) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "ki_fp_filters" "Arduino_MKR_FOX_1200_Socket" (id 6) (at 0 0 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+  )
   (symbol "Arduino_MKR_WAN_1300_Socket" (extends "Arduino_MKR_Zero_Socket")
     (property "Reference" "XA" (id 0) (at 2.54 0 90)
       (effects (font (size 1.524 1.524)))