fix(formitem): input add font color #1272

Author: richard1015

src/packages/__VUE/formitem/index.scss

@@ -46,6 +46,7 @@
       .nut-input-text {
         font-size: $form-item-body-font-size;
         text-align: $form-item-body-input-text-align;
+        color: $black;
         width: 100%;
         outline: 0 none;
         border: 0;