add GetAllCamerasByServer api

liuxiaolong

2019-10-11 1b28cea6846f5f3c904ce783f83097f0ee8662e9

 controllers/cameraTaskArgs.go

@@ -5,7 +5,7 @@
   "github.com/gin-gonic/gin"
   "strconv"
   "webserver/extend/code"
   "webserver/extend/logger"
   "basic.com/valib/logger.git"
   "webserver/extend/util"
)