emojireactions: add entities and api endpoints

app/src/main/java/com/keylesspalace/tusky/entity/Emoji.kt

@@ -25,3 +25,11 @@ data class Emoji(
         val url: String,
         @SerializedName("visible_in_picker") val visibleInPicker: Boolean?
 ) : Parcelable
+
+@Parcelize
+data class EmojiReaction(
+        val emoji: String,
+        val count: Int,
+        val reacted: Boolean,
+        val accounts: List<Account>? // only for emoji_reactions_by
+) : Parcelable

app/src/main/java/com/keylesspalace/tusky/entity/Status.kt

@@ -173,7 +173,8 @@ data class Status(
 
     data class PleromaStatus(
         @SerializedName("thread_muted") var threadMuted: Boolean?,
-        @SerializedName("conversation_id") val conversationId: Int?
+        @SerializedName("conversation_id") val conversationId: Int?,
+        @SerializedName("emoji_reactions") val emojiReactions: List<EmojiReaction>?
     )
 
     data class Mention (

app/src/main/java/com/keylesspalace/tusky/network/MastodonApi.kt

@@ -583,4 +583,21 @@ interface MastodonApi {
     
     @GET
     fun getNodeinfo(@Url url: String) : Single<NodeInfo>
+    
+    @POST("api/v1/pleroma/statuses/{id}/react_with_emoji")
+	fun reactWithEmoji(
+		@Path("id") statusId: String,
+		@Field("emoji") emoji: String
+	): Single<Status>
+	
+	@POST("api/v1/pleroma/statuses/{id}/unreact_with_emoji")
+	fun unreactWithEmoji(
+		@Path("id") statusId: String,
+		@Field("emoji") emoji: String
+	): Single<Status>
+	
+	@GET("api/v1/pleroma/statuses/{id}/emoji_reactions_by")
+	fun reactWithEmoji(
+		@Path("id") statusId: String
+	): Single<Status>
 }