emojimap: grouping like, and replacing with carousel

people holding hands are great, and need to be together.
replacing slot with carousel, per
https://github.com/emojisum/emojisum/issues/5#issuecomment-345282316

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

emoji/emojimap.json

@@ -238,8 +238,8 @@
     [":trophy:"],
     [":trumpet:"],
     [":turtle:"],
-    [":two_men_holding_hands:"],
-    [":two_women_holding_hands:"],
+    [":carousel_horse:", "U+1F3A0"],
+    [":two_women_holding_hands:", ":two_men_holding_hands:", ":couple:", "U+1F46C ", "U+1F46D", "U+1F46B"],
     [":uk:"],
     [":umbrella:"],
     [":unlock:"],

emoji/list.md

@@ -251,8 +251,8 @@ draft+2
   * `233` -- :trophy: `:trophy:`
   * `234` -- :trumpet: `:trumpet:`
   * `235` -- :turtle: `:turtle:`
-  * `236` -- :two_men_holding_hands: `:two_men_holding_hands:`
-  * `237` -- :two_women_holding_hands: `:two_women_holding_hands:`
+  * `236` -- :carousel_horse: `:carousel_horse:` [U+1F3A0](http://www.unicode.org/emoji/charts/full-emoji-list.html#1f3a0)
+  * `237` -- :two_women_holding_hands: `:two_women_holding_hands:`:two_men_holding_hands: `:two_men_holding_hands:`:couple: `:couple:` [U+1F46C ](http://www.unicode.org/emoji/charts/full-emoji-list.html#1f46c ) [U+1F46D](http://www.unicode.org/emoji/charts/full-emoji-list.html#1f46d) [U+1F46B](http://www.unicode.org/emoji/charts/full-emoji-list.html#1f46b)
   * `238` -- :uk: `:uk:`
   * `239` -- :umbrella: `:umbrella:`
   * `240` -- :unlock: `:unlock:`

emoji/map_gen.go

@@ -480,9 +480,9 @@ func init() {
       },
       Words{ ":turtle:",
       },
-      Words{ ":two_men_holding_hands:",
+      Words{ ":carousel_horse:","U+1F3A0",
       },
-      Words{ ":two_women_holding_hands:",
+      Words{ ":two_women_holding_hands:",":two_men_holding_hands:",":couple:","U+1F46C ","U+1F46D","U+1F46B",
       },
       Words{ ":uk:",
       },