!45 适配单独的桌面端IM，不影响其他端

Merge pull request !45 from zhouyz/v_2.0.0

im-commom/src/main/java/com/bx/imcommon/enums/IMTerminalType.java

@@ -16,7 +16,11 @@ public enum IMTerminalType {
     /**
      * app
      */
-    APP(1, "app");
+    APP(1, "app"),
+    /**
+     * pc
+     */
+    PC(2, "pc");
 
     private final Integer code;
 

im-platform/src/main/java/com/bx/implatform/dto/LoginDTO.java

@@ -13,10 +13,10 @@ import javax.validation.constraints.NotNull;
 @ApiModel("用户登录DTO")
 public class LoginDTO {
 
-    @Max(value = 1, message = "登录终端类型取值范围:0,1")
-    @Min(value = 0, message = "登录终端类型取值范围:0,1")
+    @Max(value = 2, message = "登录终端类型取值范围:0,2")
+    @Min(value = 0, message = "登录终端类型取值范围:0,2")
     @NotNull(message = "登录终端类型不可为空")
-    @ApiModelProperty(value = "登录终端 0:web  1:app")
+    @ApiModelProperty(value = "登录终端 0:web 1:app 2:pc")
     private Integer terminal;
 
     @NotEmpty(message = "用户名不可为空")