style: update tslint blacklist rule

FIXED-TERM Toledo Navarro Jose Ignacio (BueP/ICO) · FIXED-TERM Toledo Navarro Jose Ignacio (BueP/ICO) · commit 978149e986e3 · 2018-05-15T12:28:58.000+02:00
diff --git a/tslint.json b/tslint.json
@@ -10,7 +10,9 @@
     "eofline": true,
     "import-blacklist": [
       true,
-      "rxjs"
+      "rxjs/Rx",
+      "rxjs/observable/*",
+      "rxjs/operators/*"
     ],
     "import-spacing": true,
     "indent": [
