add wemos mini lib from https://github.com/rubienr/wemos-d1-mini-kicad.git

kicad/library/wemos_mini.dcm

@@ -0,0 +1,9 @@
+EESchema-DOCLIB  Version 2.0
+#
+$CMP WeMos_mini
+D WeMos D1 mini
+K esp8266, wemos
+F http://www.wemos.cc/Products/d1_mini.html
+$ENDCMP
+#
+#End Doc Library

kicad/library/wemos_mini.lib

@@ -0,0 +1,32 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# WeMos_mini
+#
+DEF WeMos_mini U 0 40 Y Y 1 F N
+F0 "U" 0 500 60 H V C CNN
+F1 "WeMos_mini" 0 -500 60 H V C CNN
+F2 "" 550 -700 60 H V C CNN
+F3 "" 550 -700 60 H V C CNN
+DRAW
+S -300 450 300 -550 0 1 0 N
+X 5V 1 -500 350 200 R 50 50 1 1 W
+X GND 2 -500 250 200 R 50 50 1 1 W
+X D4 3 -500 150 200 R 50 50 1 1 B
+X D3 4 -500 50 200 R 50 50 1 1 B
+X D2 5 -500 -50 200 R 50 50 1 1 B
+X D1 6 -500 -150 200 R 50 50 1 1 B
+X Rx 7 -500 -250 200 R 50 50 1 1 B
+X Tx 8 -500 -350 200 R 50 50 1 1 B
+X Rst 9 500 -350 200 L 50 50 1 1 B
+X A0 10 500 -250 200 L 50 50 1 1 B
+X D0 11 500 -150 200 L 50 50 1 1 B
+X D5 12 500 -50 200 L 50 50 1 1 B
+X D6 13 500 50 200 L 50 50 1 1 B
+X D7 14 500 150 200 L 50 50 1 1 B
+X D8 15 500 250 200 L 50 50 1 1 B
+X 3.3V 16 500 350 200 L 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+#End Library